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</channel>
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<?xml version="1.0" encoding="utf-8"?><rss xmlns:content="http://purl.org/rss/1.0/modules/content/" version="2.0"> <channel> <title><![CDATA[All commands]]></title> <link>http://www.commandlinefu.com/commands/browse/rss</link> <description><![CDATA[A repository for the most elegant and useful UNIX commands. Great commands can be shared, discussed and voted on to provide a comprehensive resource for working from the command-line]]></description> <pubDate>Wed, 08 May 2024 06:37:54 +0000</pubDate> <generator>Zend Framework Zend_Feed</generator> <language>en-us</language> <docs>http://blogs.law.harvard.edu/tech/rss</docs> <item> <title><![CDATA[Generate a GIF image from video file]]></title> <author>keyboardsage</author> <link>http://www.commandlinefu.com/commands/view/34946/generate-a-gif-image-from-video-file</link> <guid>http://www.commandlinefu.com/commands/view/34946/generate-a-gif-image-from-video-file</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ ffmpeg -ss 30 -t 3 -i input.mp4 -vf "fps=10,scale=320:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" -loop 0 output.gif</code><div style="">The 30 means start extracting frames from 30 seconds into the video. The 3 means extract the next 3 seconds from that point. The fps can be adjusted based on your preferences. The 320 is the width of the gif, the height will be calculated automatically.input.mp4 is the video file, which can be any video file ffmpeg supports. The output.gif is the gif created.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/34946/generate-a-gif-image-from-video-file">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/keyboardsage">View all commands by <strong>keyboardsage</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Tue, 19 Mar 2024 00:34:23 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/34946/generate-a-gif-image-from-video-file</comments> </item> <item> <title><![CDATA[Find all the hidden dot files]]></title> <author>keyboardsage</author> <link>http://www.commandlinefu.com/commands/view/34925/find-all-the-hidden-dot-files</link> <guid>http://www.commandlinefu.com/commands/view/34925/find-all-the-hidden-dot-files</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ find ./path_to_dir -type f -name '.*'</code><div style="">This begins recursively looking at dot files starting from "./path_to_dir". Then it prints out the names of those files.If you are satisfied with the list of files discovered then you can delete them like so `find ./path_to_dir -type f -name '.*' -exec rm '{}' \;` which executes the removal program against each of those names previously printed.This is useful when you want to remove thumbnail files on Mac OSX/Windows or simply want to reset an app's configuration on Linux.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/34925/find-all-the-hidden-dot-files">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/keyboardsage">View all commands by <strong>keyboardsage</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Sat, 16 Mar 2024 23:47:01 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/34925/find-all-the-hidden-dot-files</comments> </item> <item> <title><![CDATA[Create a highly compressed encrypted 7zip file from a directory]]></title> <author>keyboardsage</author> <link>http://www.commandlinefu.com/commands/view/34924/create-a-highly-compressed-encrypted-7zip-file-from-a-directory</link> <guid>http://www.commandlinefu.com/commands/view/34924/create-a-highly-compressed-encrypted-7zip-file-from-a-directory</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ 7z a -t7z -mhe=on -m0=lzma2 -mx=9 -mfb=64 -md=32m -ms=on some_directory.7z some_directory/</code><div style="">Create a 7zip archive named "some_directory.7z" and adds to it the directory "some_directory".The `-mhe=on` is for header encryption, basically it mangles the file names so no one knows whats inside the 7z. If -mhe=on wasn't included, then a person without the password would still be able to view the file names inside the 7z. Having this option ensures confidentiality.To ensure the result is small use lzma2, level 9 compression. Lzma2 fast bytes range from 5 to 272, the higher the number the more aggressive it is at finding repetitive bytes that can be added to the dictionary. Here the fast bytes are set to 64 bytes and the dictionary is 32 MB. Depending on your purposes (the directory size and desired file size), you can be more aggressive with these values.Lastly, `-ms=on` just says concatenate all the individual files and treat them as a singular file when compressing. This leads to a higher compression ratio generally.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/34924/create-a-highly-compressed-encrypted-7zip-file-from-a-directory">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/keyboardsage">View all commands by <strong>keyboardsage</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Sat, 16 Mar 2024 23:36:38 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/34924/create-a-highly-compressed-encrypted-7zip-file-from-a-directory</comments> </item> <item> <title><![CDATA[Disk usage skipping mount points (even top-level ones)]]></title> <author>dmmst19</author> <link>http://www.commandlinefu.com/commands/view/34690/disk-usage-skipping-mount-points-even-top-level-ones</link> <guid>http://www.commandlinefu.com/commands/view/34690/disk-usage-skipping-mount-points-even-top-level-ones</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ for a in /*; do mountpoint -q -- "$a" || du -shx "$a"; done | sort -h</code><div style="">Other solutions that involve doing <code>du -sx /*</code>are incomplete because they will still descend other top-level filesystems are that mounted directly at "/" because the * expands to explicitly include all files and directories in "/", and du will still traverse them even with -x because you asked it to by supplying the directory name as a parameter (indirectly via "*").</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/34690/disk-usage-skipping-mount-points-even-top-level-ones">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/dmmst19">View all commands by <strong>dmmst19</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Wed, 28 Feb 2024 01:43:19 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/34690/disk-usage-skipping-mount-points-even-top-level-ones</comments> </item> <item> <title><![CDATA[Generate random port number]]></title> <author>pabloab</author> <link>http://www.commandlinefu.com/commands/view/34571/generate-random-port-number</link> <guid>http://www.commandlinefu.com/commands/view/34571/generate-random-port-number</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ shuf -i 1024-65535 -n 1</code><div style="">`shuf` generate random permutations. `-i`, `--input-range=LO-HI` and `-n`, `--head-count=COUNT` output at most COUNT lines</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/34571/generate-random-port-number">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/pabloab">View all commands by <strong>pabloab</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Mon, 19 Feb 2024 22:02:25 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/34571/generate-random-port-number</comments> </item> <item> <title><![CDATA[Assign top-level JSON entries to shell variables]]></title> <author>penthief</author> <link>http://www.commandlinefu.com/commands/view/32931/assign-top-level-json-entries-to-shell-variables</link> <guid>http://www.commandlinefu.com/commands/view/32931/assign-top-level-json-entries-to-shell-variables</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ json='{"a":42, "b":"s t r i n g", "c": []}' ; eval $(echo $json | jq -r 'to_entries | .[] | select(.value | scalars) | .key + "=\"" + (.value | tostring) + "\";"' | tee /dev/tty)</code><div style="">A recursive version might be useful too./dev/tty is used to show which shell variables just got defined.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32931/assign-top-level-json-entries-to-shell-variables">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/penthief">View all commands by <strong>penthief</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Tue, 26 Sep 2023 03:11:38 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32931/assign-top-level-json-entries-to-shell-variables</comments> </item> <item> <title><![CDATA[MacOS: Make the terminal app always quit when]]></title> <author>realkstrawn93 (http://realkstrawn93.blogspot.com)</author> <link>http://www.commandlinefu.com/commands/view/32832/macos-make-the-terminal-app-always-quit-when</link> <guid>http://www.commandlinefu.com/commands/view/32832/macos-make-the-terminal-app-always-quit-when</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ alias exit="killall Terminal"</code><div style="">When you use the "exit" command in a Linux terminal window, it not only closes the terminal window itself but also the terminal emulator app, such as GNOME Terminal or Konsole, that it belongs to. If you use the "exit" command on macOS, however, Terminal.app still shows a dot below its Dock icon and is still running in the background. This alias, when entered into ~/.zshrc, overrides this behavior.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32832/macos-make-the-terminal-app-always-quit-when">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/realkstrawn93">View all commands by <strong>realkstrawn93</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Mon, 18 Sep 2023 04:41:06 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32832/macos-make-the-terminal-app-always-quit-when</comments> </item> <item> <title><![CDATA[Get the beats per minute from an audio track]]></title> <author>malathion</author> <link>http://www.commandlinefu.com/commands/view/32816/get-the-beats-per-minute-from-an-audio-track</link> <guid>http://www.commandlinefu.com/commands/view/32816/get-the-beats-per-minute-from-an-audio-track</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ ffmpeg -loglevel quiet -i "$AUDIO_FILE" -f f32le -ac 1 -ar 44100 - | bpm</code><div style="">Requires bpm-tools https://www.pogo.org.uk/~mark/bpm-tools/</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32816/get-the-beats-per-minute-from-an-audio-track">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/malathion">View all commands by <strong>malathion</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Sat, 16 Sep 2023 18:55:16 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32816/get-the-beats-per-minute-from-an-audio-track</comments> </item> <item> <title><![CDATA[Download Video & extract only a specific Time of it]]></title> <author>malathion</author> <link>http://www.commandlinefu.com/commands/view/32814/download-video-extract-only-a-specific-time-of-it</link> <guid>http://www.commandlinefu.com/commands/view/32814/download-video-extract-only-a-specific-time-of-it</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ yt-dlp --external-downloader ffmpeg --external-downloader-args "-ss 00:05:00 -t 00:01:00" "https://www.youtube.com/watch?v=Y6DGABIcB3w"</code><div style="">Because this does not download more of the video than necessary, it is faster (especially with long videos).</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32814/download-video-extract-only-a-specific-time-of-it">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/malathion">View all commands by <strong>malathion</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Sat, 16 Sep 2023 18:04:12 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32814/download-video-extract-only-a-specific-time-of-it</comments> </item> <item> <title><![CDATA[Show temp of all disk]]></title> <author>kokoparkletal</author> <link>http://www.commandlinefu.com/commands/view/32708/show-temp-of-all-disk</link> <guid>http://www.commandlinefu.com/commands/view/32708/show-temp-of-all-disk</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ grep -l "drivetemp" /sys/class/hwmon/hwmon*/name | while read f; do printf "%s(%-.2s°C)\n" "`<${f%/*}/device/model`" "`<${f%/*}/temp1_input`"; done</code><div style="">Show temp of all disk with the drivetemp module activate</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32708/show-temp-of-all-disk">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/kokoparkletal">View all commands by <strong>kokoparkletal</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Sun, 10 Sep 2023 18:24:29 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32708/show-temp-of-all-disk</comments> </item> <item> <title><![CDATA[Linux clear restrictions of a user's password]]></title> <author>net0bsd (http://www.linuxred.net)</author> <link>http://www.commandlinefu.com/commands/view/32460/linux-clear-restrictions-of-a-users-password</link> <guid>http://www.commandlinefu.com/commands/view/32460/linux-clear-restrictions-of-a-users-password</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ chage -E -1 -m 0 -M -1 -W -1 user01</code><div style="">Command that clears the expiration restrictions of a user's password</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32460/linux-clear-restrictions-of-a-users-password">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/net0bsd">View all commands by <strong>net0bsd</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Mon, 21 Aug 2023 06:37:40 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32460/linux-clear-restrictions-of-a-users-password</comments> </item> <item> <title><![CDATA[Monitor changed files into a log file, with day rotation, using fswatch (MacOS)]]></title> <author>paulera (http://paulodev.com)</author> <link>http://www.commandlinefu.com/commands/view/32396/monitor-changed-files-into-a-log-file-with-day-rotation-using-fswatch-macos</link> <guid>http://www.commandlinefu.com/commands/view/32396/monitor-changed-files-into-a-log-file-with-day-rotation-using-fswatch-macos</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ fswatch --exclude=.git/* --exclude=.settings --event-flags --event-flag-separator=\; -t -f '%Y-%m-%d %H:%M:%S' . >> ./.file_changes_$(date +"%Y-%m-%d" | sed s/-//g).log</code><div style="">This command monitors changes in the current folder structure (subfolders included) and files, and log it into a hidden file in the same folder, called `.file_changes_YYMMDD.log`. Modify the `--exclude` parameters to define what should be skipped.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32396/monitor-changed-files-into-a-log-file-with-day-rotation-using-fswatch-macos">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/paulera">View all commands by <strong>paulera</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Thu, 17 Aug 2023 23:06:30 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32396/monitor-changed-files-into-a-log-file-with-day-rotation-using-fswatch-macos</comments> </item> <item> <title><![CDATA[Compute newest kernel version from Makefile on Torvalds' git repository]]></title> <author>realkstrawn93 (http://realkstrawn93.blogspot.com)</author> <link>http://www.commandlinefu.com/commands/view/32321/compute-newest-kernel-version-from-makefile-on-torvalds-git-repository</link> <guid>http://www.commandlinefu.com/commands/view/32321/compute-newest-kernel-version-from-makefile-on-torvalds-git-repository</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ curl -s -o - https://raw.githubusercontent.com/torvalds/linux/master/Makefile | head -n5 | grep -E '\ \=\ [0-9]{1,}' | cut -d' ' -f3 | tr '\n' '.' | sed -e "s/\.$//"</code><div style="">The platform-agnostic version of https://www.commandlinefu.com/commands/view/25276/compute-newest-kernel-version-from-makefile-on-torvalds-git-repository because macOS doesn't have wget installed</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32321/compute-newest-kernel-version-from-makefile-on-torvalds-git-repository">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/realkstrawn93">View all commands by <strong>realkstrawn93</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Thu, 10 Aug 2023 22:25:55 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32321/compute-newest-kernel-version-from-makefile-on-torvalds-git-repository</comments> </item> <item> <title><![CDATA[Sudoers: bypass all password prompts]]></title> <author>realkstrawn93 (http://realkstrawn93.blogspot.com)</author> <link>http://www.commandlinefu.com/commands/view/32320/sudoers-bypass-all-password-prompts</link> <guid>http://www.commandlinefu.com/commands/view/32320/sudoers-bypass-all-password-prompts</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ echo "$USER ALL=(ALL:ALL) NOPASSWD: ALL" | sudo tee -a /etc/sudoers</code><div style="">If you as the sole user of a computer at home only don’t like needing to repeatedly type a password each time you run a command, using ‘NOPASSWD’ in sudoers for your specific username is for you.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/32320/sudoers-bypass-all-password-prompts">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/realkstrawn93">View all commands by <strong>realkstrawn93</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Thu, 10 Aug 2023 22:19:18 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/32320/sudoers-bypass-all-password-prompts</comments> </item> <item> <title><![CDATA[Prepend section dates to individual entries in a summary log file]]></title> <author>jtopian</author> <link>http://www.commandlinefu.com/commands/view/31963/prepend-section-dates-to-individual-entries-in-a-summary-log-file</link> <guid>http://www.commandlinefu.com/commands/view/31963/prepend-section-dates-to-individual-entries-in-a-summary-log-file</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ gawk 'match($0, /^\s*([0-9]{2}\/[0-9]{2}\/[0-9]{4})\s*/, m) {prev_date=m[1]} /SEARCHSTRING/ {print prev_date, ",", $1 $2, ",", $3, "," $5}' inputfile.txt</code><div style="">Searches for dates on lines by themselves. Uses that date to prepend all rows that contain SEARCHSTRING with the date, until it reaches another line with a date by itself. This fixed an issue with a specific log export where there would be a date, followed by all of the entries for that date.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/31963/prepend-section-dates-to-individual-entries-in-a-summary-log-file">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/jtopian">View all commands by <strong>jtopian</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Tue, 11 Jul 2023 23:20:38 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/31963/prepend-section-dates-to-individual-entries-in-a-summary-log-file</comments> </item> <item> <title><![CDATA[Print macOS current power delivery max wattage]]></title> <author>lgarron (http://garron.net)</author> <link>http://www.commandlinefu.com/commands/view/31919/print-macos-current-power-delivery-max-wattage</link> <guid>http://www.commandlinefu.com/commands/view/31919/print-macos-current-power-delivery-max-wattage</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ system_profiler SPPowerDataType | grep Wattage</code><div style="">Print the max wattage of the current power draw source for a Mac. Note that the current amount of watts drawn may be lower, particularly if a high-wattage adapter is plugged into a Mac that has a full battery.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/31919/print-macos-current-power-delivery-max-wattage">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/lgarron">View all commands by <strong>lgarron</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Thu, 06 Jul 2023 17:58:00 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/31919/print-macos-current-power-delivery-max-wattage</comments> </item> <item> <title><![CDATA[Create a visually twisted effect by alternating the direction of the "staples" effect vertically. The effect is achieved by moving odd-numbered lines from right to left and even-numbered lines from left to right.]]></title> <author>wuseman1</author> <link>http://www.commandlinefu.com/commands/view/31887/create-a-visually-twisted-effect-by-alternating-the-direction-of-the-staples-effect-vertically.-the-effect-is-achieved-by-moving-odd-numbered-lines-from-right-to-left-and-even-numbered-lines-from-left-to-right.</link> <guid>http://www.commandlinefu.com/commands/view/31887/create-a-visually-twisted-effect-by-alternating-the-direction-of-the-staples-effect-vertically.-the-effect-is-achieved-by-moving-odd-numbered-lines-from-right-to-left-and-even-numbered-lines-from-left-to-right.</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ while :; do for ((i=0;i<$(tput cols);i++));do clear;for ((j=0;j<$(tput lines);j++));do printf "\e[48;5;$((RANDOM%256))m%*s\e[0m\n" $(((j+i)%2?$(tput cols)-i:i)) "";done;sleep 0.05;done;done</code><div style="">The effect is achieved by moving odd-numbered lines from right to left and even-numbered lines from left to right.For odd-numbered lines (with an index j), the ((j + i) % 2 == 0) condition is satisfied. In this case, the line width is set to i, resulting in the line moving from left to right.For even-numbered lines, the ((j + i) % 2 == 0) condition is not satisfied. The line width is set to $(tput cols) - i, causing the line to move from right to left.This alternating direction of movement creates a twisted visual effect as the lines appear to move in opposite directions. The code runs in a continuous loop, repeatedly updating the lines with changing background colors. There is a slight pause of 0.05 seconds between each iteration to control the speed of the animation.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/31887/create-a-visually-twisted-effect-by-alternating-the-direction-of-the-staples-effect-vertically.-the-effect-is-achieved-by-moving-odd-numbered-lines-from-right-to-left-and-even-numbered-lines-from-left-to-right.">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/wuseman1">View all commands by <strong>wuseman1</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Tue, 04 Jul 2023 00:47:37 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/31887/create-a-visually-twisted-effect-by-alternating-the-direction-of-the-staples-effect-vertically.-the-effect-is-achieved-by-moving-odd-numbered-lines-from-right-to-left-and-even-numbered-lines-from-left-to-right.</comments> </item> <item> <title><![CDATA[Fill the screen with randomly colored lines]]></title> <author>wuseman1</author> <link>http://www.commandlinefu.com/commands/view/31886/fill-the-screen-with-randomly-colored-lines</link> <guid>http://www.commandlinefu.com/commands/view/31886/fill-the-screen-with-randomly-colored-lines</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ while :; do printf "\e[48;2;$((RANDOM % 256));$((RANDOM % 256));$((RANDOM % 256))m%*s\e[0m" $(tput cols) ""; sleep 0.1; done</code><div style="">This one-liner fills the screen with randomly colored lines.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/31886/fill-the-screen-with-randomly-colored-lines">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/wuseman1">View all commands by <strong>wuseman1</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Tue, 04 Jul 2023 00:38:46 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/31886/fill-the-screen-with-randomly-colored-lines</comments> </item> <item> <title><![CDATA[Scan LAN and get Windows host names]]></title> <author>swarzynski</author> <link>http://www.commandlinefu.com/commands/view/31796/scan-lan-and-get-windows-host-names</link> <guid>http://www.commandlinefu.com/commands/view/31796/scan-lan-and-get-windows-host-names</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ nmap -sn --system-dns 192.168.0.1-253</code><div style=""></div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/31796/scan-lan-and-get-windows-host-names">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/swarzynski">View all commands by <strong>swarzynski</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Fri, 23 Jun 2023 10:50:25 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/31796/scan-lan-and-get-windows-host-names</comments> </item> <item> <title><![CDATA[Check if a domain is available for purchase]]></title> <author>tyzbit (http://qtosw.com)</author> <link>http://www.commandlinefu.com/commands/view/31767/check-if-a-domain-is-available-for-purchase</link> <guid>http://www.commandlinefu.com/commands/view/31767/check-if-a-domain-is-available-for-purchase</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ function canibuy { whois "$1" 2>/dev/null | grep -q 'Registrant' && echo "taken" || echo "available" }</code><div style="">A quick alias to check if a domain is already registered or if it's available for purchase.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/31767/check-if-a-domain-is-available-for-purchase">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/tyzbit">View all commands by <strong>tyzbit</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Wed, 21 Jun 2023 15:01:25 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/31767/check-if-a-domain-is-available-for-purchase</comments> </item> <item> <title><![CDATA[This command provides more color variety for the rainbow-like appearance by generating random color codes from 16 to 231 for adb logcat.]]></title> <author>wuseman1</author> <link>http://www.commandlinefu.com/commands/view/31375/this-command-provides-more-color-variety-for-the-rainbow-like-appearance-by-generating-random-color-codes-from-16-to-231-for-adb-logcat.</link> <guid>http://www.commandlinefu.com/commands/view/31375/this-command-provides-more-color-variety-for-the-rainbow-like-appearance-by-generating-random-color-codes-from-16-to-231-for-adb-logcat.</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ adb logcat|awk '{ i srand();for (i = 1; i <= NF; i++) { color = int(rand() * 216) + 16; printf "\033[38;5;%dm%s\033[0m ", color, $i;} printf "\n"; }'</code><div style=""></div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/31375/this-command-provides-more-color-variety-for-the-rainbow-like-appearance-by-generating-random-color-codes-from-16-to-231-for-adb-logcat.">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/wuseman1">View all commands by <strong>wuseman1</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Tue, 30 May 2023 16:48:17 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/31375/this-command-provides-more-color-variety-for-the-rainbow-like-appearance-by-generating-random-color-codes-from-16-to-231-for-adb-logcat.</comments> </item> <item> <title><![CDATA[Disassemble all ACPI tables on your system]]></title> <author>realkstrawn93 (http://realkstrawn93.blogspot.com)</author> <link>http://www.commandlinefu.com/commands/view/30815/disassemble-all-acpi-tables-on-your-system</link> <guid>http://www.commandlinefu.com/commands/view/30815/disassemble-all-acpi-tables-on-your-system</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ for i in /sys/firmware/acpi/tables/*; do sudo iasl -p $PWD/$(echo $i | cut -d\/ -f6) $i && sudo chown $USER $(echo $i | cut -d\/ -f6); done</code><div style="">The fact that Linux exposes the ACPI tables to the user via sysfs makes them a gold mine of valuable hardware information for low-level developers. Looping through each of them and disassembling them all makes them even more valuable.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/30815/disassemble-all-acpi-tables-on-your-system">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/realkstrawn93">View all commands by <strong>realkstrawn93</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Sun, 16 Apr 2023 05:33:51 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/30815/disassemble-all-acpi-tables-on-your-system</comments> </item> <item> <title><![CDATA[Polkit: Force KDE apps to always recognize your display]]></title> <author>realkstrawn93 (http://realkstrawn93.blogspot.com)</author> <link>http://www.commandlinefu.com/commands/view/30772/polkit-force-kde-apps-to-always-recognize-your-display</link> <guid>http://www.commandlinefu.com/commands/view/30772/polkit-force-kde-apps-to-always-recognize-your-display</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ alias pkexec=“pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY KDE_SESSION_VERSION=5 KDE_FULL_SESSION=true”</code><div style="">KDE apps expect certain variables to be set, and unfortunately pkexec doesn’t set them by default. So, by setting this alias, it becomes possible to run, e.g. “pkexec kate” or “pkexec dolphin” and it’ll actually run.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/30772/polkit-force-kde-apps-to-always-recognize-your-display">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/realkstrawn93">View all commands by <strong>realkstrawn93</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Thu, 13 Apr 2023 05:37:36 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/30772/polkit-force-kde-apps-to-always-recognize-your-display</comments> </item> <item> <title><![CDATA[Loops over files, runs a command, dumps output to a file]]></title> <author>topher1kenobe (http://derosia.com)</author> <link>http://www.commandlinefu.com/commands/view/30748/loops-over-files-runs-a-command-dumps-output-to-a-file</link> <guid>http://www.commandlinefu.com/commands/view/30748/loops-over-files-runs-a-command-dumps-output-to-a-file</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ for f in *php; do echo $f >> ~/temp/errors.txt; phpcsw $f | grep GET >> ~/temp/errors.txt; done</code><div style="">In this case I'm selecting all php files in a dir, then echoing the filename and piping it to ~/temp/errors.txt. Then I'm running my alias for PHPCS (WordPress flags in my alias), then piping the PHPCS output to grep and looking for GET. Then I'm piping that output to the same file as above.This gets a list of files and under each file the GET security errors for that file.Extrapolate this to run any command on any list of files and pipe the output to a file.Remove the >> ~/temp/errors.txt to get output to the screen rather than to a file.</div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/30748/loops-over-files-runs-a-command-dumps-output-to-a-file">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/topher1kenobe">View all commands by <strong>topher1kenobe</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Wed, 12 Apr 2023 14:17:14 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/30748/loops-over-files-runs-a-command-dumps-output-to-a-file</comments> </item> <item> <title><![CDATA[Download Video & extract only a specific Time of it]]></title> <author>dbiesecke</author> <link>http://www.commandlinefu.com/commands/view/30575/download-video-extract-only-a-specific-time-of-it</link> <guid>http://www.commandlinefu.com/commands/view/30575/download-video-extract-only-a-specific-time-of-it</guid> <description><![CDATA[<code style="padding:5px; font-family:monospace; font-size:12pt">$ fmpeg $(yt-dlp -g 'https://de.pornhub.com/view_video.php?viewkey=ph637366806d6eb' | sed 's/^/-ss 00:05 -i /') -t 01:00 -c copy out.mp4</code><div style=""></div><ul style="list-style:none; padding: 0; margin: 0"> <li><a href="http://www.commandlinefu.com/commands/view/30575/download-video-extract-only-a-specific-time-of-it">View this command to comment, vote or add to favourites</a></li> <li><a href="/commands/by/dbiesecke">View all commands by <strong>dbiesecke</strong></a></li></ul><p><a href="http://www.commandlinefu.com"><img src="http://www.commandlinefu.com/images/small-logo.jpg" alt="commandlinefu.com"/></a></p><p>Diff your entire server config at <a href="http://www.scriptrock.com?utm_campaign=clfu&utm_medium=clfu%20api%20rss&utm_source=clfu">ScriptRock.com</a></p>]]></description> <pubDate>Sat, 01 Apr 2023 17:39:01 +0000</pubDate> <comments>http://www.commandlinefu.com/commands/view/30575/download-video-extract-only-a-specific-time-of-it</comments> </item> </channel></rss> 
