Commands by sxiii (15)

  • Extend LVM and online resize filesystem

    Default volume group in Ubuntu is ubuntu-vg and the logical volume is ubuntu-lv, so the provided command will resize the disk to utilize 100% of the available space. Show Sample Output


    0
    lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv && resize2fs /dev/ubuntu-vg/ubuntu-lv
    sxiii · 2022-08-26 13:02:10 726
  • Track flight information from the command line

    See the flight information from the CLI Use as a SH file or function, like: `./flight.sh os 336` Show Sample Output


    2
    flight_status() { curl --silent --stderr - "https://mobile.flightview.com/TrackByRoute.aspx?view=detail&al=$1&fn=$2&dpdat=$(date +%Y%m%d)" | html2text | grep -A19 "Status" ; } ; flight_status $1 $2
    sxiii · 2022-07-26 12:09:17 376
  • Check out Gate number for your flight from CLI with Chrome

    Check out Gate number for your flight from CLI with Chrome, html2texgt and grep. Works on Arch Linux (Garuda) and probably will work on others. Requirements: * google chrome (might work with chromium as well) * installed html2text (on archlinux: sudo pacman -S python-html2text) * installed grep (comes by default with your OS) * the gate number should be visible at the given website (it's not existent too early before the flight and also disappears after the flight departed) Please don't forget to replace the link to appropriate one, matching your flight. You can also wrap this into something like `whlie true; do ...; sleep 60; done' and this will check and tell you the gate number maximum in 1 minute after it appears on Avinor website. Show Sample Output


    0
    google-chrome-stable --headless --dump-dom --disable-gpu "https://avinor.no/flight/?flightLegId=dy754-osl-trd-20220726&airport=OSL" 2>/dev/null | html2text | grep -A2 Gate
    sxiii · 2022-07-26 11:50:59 315
  • Listen Digitally Imported Radio from CLI (without premium!)

    This commands does just two things: fakes user agent (the one was taken from recent Android app) and sends the (possibly) listener ID (it can be any - I put "1" here because it works like a charm - after the name of stream ?1 as you can see). Look for the list of stations here: http://pub7.di.fm Or here: https://goo.gl/pdhhpQ Best regards, sxiii :) Show Sample Output


    2
    mplayer http://pub7.di.fm/di_ambient_aac?1 -user-agent "AudioAddict-di/3.2.0.3240 Android/5.1"
    sxiii · 2016-04-29 23:41:17 20
  • Show all the available information about your current distribution, package management and base

    Just run this command and it will printout all the info available about your current distribution and package management system. Show Sample Output


    4
    echo /etc/*_ver* /etc/*-rel*; cat /etc/*_ver* /etc/*-rel*
    sxiii · 2016-02-19 12:12:38 15
  • Get a facebook likes quantity from CLI

    Replace the with your URL, for example http://rublacklist.net/12348/ and it will show likes number Show Sample Output


    1
    curl - https://graph.facebook.com/fql?q=SELECT%20like_count,%20total_count,%20share_count,%20click_count,%20comment_count%20FROM%20link_stat%20WHERE%20url%20=%20%27<URL>%27 | awk -F\" '{ print $7 }' | awk -F":" '{ print $2 }' | awk -F"," '{ print $1 }'
    sxiii · 2015-08-19 20:01:15 11
  • Add GPG key easy - oneliner

    Replace KEY with GPG key. This command will load GPG key and add it to your system so you can use software from third party repos etc. Show Sample Output


    1
    x=KEY; gpg --keyserver subkeys.pgp.net --recv $x; gpg --export --armor $x | sudo apt-key add -
    sxiii · 2013-11-26 10:49:32 9
  • Processes biglion quantity of sold ebay coupons/bonus codes

    Processes biglion quantity of sold ebay coupons/bonus codes, so you can know approximate count of users who buyed the coupons and when sales are come up again. You can change sleep parameter so script will work slowly or faster (default is 5 seconds). Additional requirements: curl Standart tools used: awk, date, cat, grep (bash) Show Sample Output


    -1
    while true; do date; (curl -s -o 1.html http://www.biglion.ru/deals/ebay-80/ &); sleep 5; cat 1.html | grep "&#1082;&#1091;&#1087;&#1086;&#1085;&#1086;&#1074;" | awk -F"<div>" '{print $2}' | awk -F"<span>" '{print $1}'; done
    sxiii · 2013-11-08 12:40:05 7
  • Command to get list of all existing programming languages from Wikipedia article

    Requirements: curl, grep, awk, internet connection with access to wikipedia Loaded page: http://en.wikipedia.org/wiki/List_of_programming_languages If you can make shorter version of this listgetter, you are welcome to paste it here :) Show Sample Output


    0
    curl http://en.wikipedia.org/wiki/List_of_programming_languages | grep "<li>" | awk -F"title=" '{ print $2 }' | awk -F\" '{ print $2 }'
    sxiii · 2013-01-09 21:40:11 11
  • Oneliner to get domain names list of all existing domain names (from wikipedia)

    Oneliner to get domain names list of all existing domain names (from wikipedia) Show Sample Output


    -4
    curl http://en.m.wikipedia.org/wiki/List_of_Internet_top-level_domains | grep "<tr valign=\"top\">" | awk -F">" '{ print $5 }' | awk -F"<" '{ print $1 }'
    sxiii · 2012-12-24 21:00:36 4
  • Fix MP3 tags encoding (to UTF-8). Batch fixes all MP3s in one directory.

    Fixes MP3 tags encoding (to UTF-8). Batch fixes all MP3s in one directory.


    0
    find . -iname "*.mp3" -execdir mid3iconv -e <encoding> {} \;
    sxiii · 2011-12-14 18:10:27 5
  • Output sound when your computer is downloading something

    Outputs pseudo-random sounds to speakers (stereo mode because of -c 2) when there are any kind of network activity. Show Sample Output


    3
    tcpdump | aplay -c 2
    sxiii · 2011-08-27 15:03:02 5
  • kill all running instances of wine and programs runned by it (exe)

    This command kills all wine instances and each EXE application working on a PC. Here is command info: 1) ps ax > processes = save process list to file named "processes" (we save it because we don't wont egrep to be found in the future) 2) cat processes | egrep "*.exe |*exe]" = shows the file "processes" and after greps for each *.exe and *exe] in it 3) | awk '{ print $1 }' > pstokill = saves processes PID's to file "pstokill" using awk filter 4) kill $(cat pstokill) = kills each PID in file pstokill, which is shown by cat program 5) rm processes && rm pstokill = removes temporary files Show Sample Output


    -4
    ps ax > processes && cat processes | egrep "*.exe |*exe]" | awk '{ print $1 }' > pstokill && kill $(cat pstokill) && rm processes && rm pstokill
    sxiii · 2011-02-26 16:13:58 5
  • Whois on target and save results to file instantly

    This can be used in scripts, to find out the origin of target IP etc. Show Sample Output


    -5
    x=192.168.1.1; whois $x > $x.txt
    sxiii · 2011-01-17 03:33:49 7
  • ASCII webcam live stream video using mplayer

    Mplayer starts a webcam capture using ASCII art. Only mplayer required


    7
    mplayer -tv driver=v4l2:gain=1:width=640:height=480:device=/dev/video0:fps=10:outfmt=rgb16 -vo aa tv://
    sxiii · 2010-12-07 05:17:00 6

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Validate openssh key & print checksum

grep -v with multiple patterns.
You can use -e to pass multiple patterns.

Oneliner to get domain names list of all existing domain names (from wikipedia)
Quietly get a webpage from wikipedia: curl -s By default, don't output anything: sed -n Search for interesting lines: /<tr valign="top">/ With the matching lines: {} Search and replace any html tags: s/<[^>]*>//g Finally print the result: p

Copy a directory recursively without data/files

Show a prettified list of nearby wireless APs

parse and format IP:port currently in listen state without net tools
Useful for containers and environments where you need to know if a port is currently in listen mode but you have not easy way or privileges to install net-tools like netstat or ss. "0A" is the code for listen state. The IP hex is reverse order and all in hex format.

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

Look for IPv4 address in files.
It finds a SNMP OID too :-(

remove *.jpg smaller than 500x500

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: