Commands tagged fun (14)

  • When feeling down, this command helps

    sudo apt-get install sl man sl


    24
    sl
    Svish · 2009-04-19 15:24:03 20
  • synchronicity

    The British Government entering in the Gregorian era. Show Sample Output


    10
    cal 09 1752
    flux · 2009-04-22 00:13:19 33
  • let a cow tell you your fortune


    8
    fortune | cowsay
    CodSpirit · 2010-05-31 13:23:39 3
  • Have a smile

    Outputs utf-8 smileys Show Sample Output


    5
    printf "$(awk 'BEGIN{c=127;while(c++<191){printf("\xf0\x9f\x98\\%s",sprintf("%o",c));}}')"
    ichbins · 2022-04-06 12:10:37 364
  • display a smiling smiley if the command succeeded and a sad smiley if the command failed

    you could save the code between if and fi to a shell script named smiley.sh with the first argument as and then do a smiley.sh to see if the command succeeded. a bit needless but who cares ;) Show Sample Output


    4
    <commmand>; if [[ "$?" = 0 ]]; then echo ':)'; else echo ':('; fi
    potatoface · 2010-08-23 20:35:31 13
  • Safe Russian Roulette (only echo, don't delete files)

    Shows "Bang!" in a chance of 1 out of 6, like in the original game with the gun (spin every round). Otherwise, echoes "Click...". If feeling brave you can also do: [ $[ $RANDOM % 6 ] == 0 ] && echo 'Bang!' && a really killer command || echo 'Click...' Show Sample Output


    4
    [ $[ $RANDOM % 6 ] == 0 ] && echo 'Bang!' || echo 'Click...'
    paulera · 2016-03-23 11:09:56 28
  • Labyrinth pattern

    Generates labyrinth-like pattern on UTF-8 terminal in bash. For fun ;) Show Sample Output


    2
    while ( true ) ; do if [ $(expr $RANDOM % 2 ) -eq 0 ] ; then echo -ne "\xE2\x95\xB1" ; else echo -ne "\xE2\x95\xB2" ; fi ; done
    tobi · 2015-01-17 12:46:37 10
  • let a cow tell you your fortune


    1
    cowsay $(fortune)
    mandroid · 2010-05-31 12:47:06 3
  • skipping five lines, at top, then at bottom

    Strangely enough, there is no option --lines=[negative] with tail, like the head's one, so we have to use sed, which is very short and clear, you see. Strangely more enough, skipping lines at the bottom with sed is not short nor clear. From Sed one liner : # delete the last 10 lines of a file $ sed -e :a -e '$d;N;2,10ba' -e 'P;D' # method 1 $ sed -n -e :a -e '1,10!{P;N;D;};N;ba' # method 2 Show Sample Output


    0
    seq 1 12 | sed 1,5d ; seq 1 12 | head --lines=-5
    flux · 2009-08-01 00:41:52 8
  • let a cow tell you your fortune

    Let Tux bring the fortune cookie


    0
    fortune | cowsay -f tux
    Zaphod · 2010-06-01 09:04:01 3
  • Play Lisp Snake in Emacs


    0
    emacs -f snake
    steadystatic · 2015-11-03 23:34:57 40
  • Combo matrix

    This is longer than others on here. The reason for this is I have combined two different matrix commands so it would work on all computers. I logged onto my server through a computer and it worked fine. I logged into my server through a mac and it looked $4!t so I have made one that works through both. Show Sample Output


    -1
    echo -e "CHECK=SAMPLE" output --command_to_long
    techie · 2013-04-03 08:46:47 10
  • Firefly quotes


    -3
    yum install fortune-firefly; fortune
    madrasi · 2011-01-26 04:32:03 4
  • figlet


    -6
    figlet -f roman message
    ekinertac · 2013-04-23 02:25:39 12

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

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Remove git branches that do not have a remote tracking branch anymore

Virtualbox rsync copy (without defining any virtualbox configuration)
That is, after running `vagrant ssh-config` to determine ports and ip's: $ vagrant ssh-config Host default HostName 127.0.0.1 User vagrant Port 2200 UserKnownHostsFile /dev/null StrictHostKeyChecking no PasswordAuthentication no IdentityFile /Users/romanvg/tmp/.vagrant/machines/default/virtualbox/private_key IdentitiesOnly yes LogLevel FATAL

Find which service was used by which port number

RELINK a lot of broken symlinks - FIX broken symlinks after rsync site to new server
After you run this script, you can check status for broken symlink with this command: find -L . -type l

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Debug a remote php application (behind firewall) using ssh tunnel for XDEBUG port 9000
If you need to xdebug a remote php application, which is behind a firewall, and you have an ssh daemon running on that machine. you can redirect port 9000 on that machine over to your local machine from which you run your xdebug client (I am using phpStorm) So, run this command on your local machine and start your local xdebug client, to start debugging. more info: http://code.google.com/p/spectator/wiki/Installing

Grep all non-ascii character in file
It will highlight non-ascii character in a file. those character can cause problem for some application parsing ascii file.

remove execute bit only from files. recursively

List all accessed configuration files while executing a program in linux terminal (improved version)
Last listed files presumably have higher precedency then files listed first, i.e. configuration files in the personal .config directory will be listed last and their config parameters will be more authoritative then default config parameters defined in /etc directory which are usually listed above them. If you replace ".conf" with ".ini" in the command, initial files will be listed instead of config files. If you do not like to list multiple access to the same config file, pipe to "uniq" or "uniq -c" to prefix lines by the number of occurrences

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: