Commands tagged fun (14)

  • When feeling down, this command helps

    sudo apt-get install sl man sl


    25
    sl
    Svish · 2009-04-19 15:24:03 25
  • synchronicity

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


    10
    cal 09 1752
    flux · 2009-04-22 00:13:19 38
  • let a cow tell you your fortune


    8
    fortune | cowsay
    CodSpirit · 2010-05-31 13:23:39 5
  • 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 12:10:37 991
  • 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 14
  • 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 36
  • Labyrinth pattern

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


    3
    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 11
  • let a cow tell you your fortune


    1
    cowsay $(fortune)
    mandroid · 2010-05-31 12:47:06 6
  • 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 4
  • 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 11
  • Firefly quotes


    -3
    yum install fortune-firefly; fortune
    madrasi · 2011-01-26 04:32:03 5
  • figlet


    -6
    figlet -f roman message
    ekinertac · 2013-04-23 02:25:39 13

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Rename files in batch

Remove all unused kernels with apt-get
A little aptitude magic. Note: this will remove images AND headers. If you just want to remove images: aptitude remove ?and(~i~nlinux-im ?not(~n`uname -r`)) I used this in zsh without any problems. I'm not sure how other shells will interpret some of the special characters used in the aptitude search terms. Use -s to simulate.

most used unix commands

Quickly batch resize images
-geometry (preserves values of height and width given, and aspect ratio). WARNING: While 'resize' creates resized copies of original files, 'mogrify' works on the original files, replacing them. It will overwrite the source files, use with caution, and backup regularly.

separate (emphasize) digital strings from other text

one-liner mpc track changer using dmenu
Add a [fluxbox] binding in your key file then this command provides a dmenu selector for the next track to play

list files recursively by size

listen to ram

grep tab chars
mixing tabs and spaces for indentation in python would confuse the python interpreter, to avoid that, check if the file has any tab based indentation. "^V" => denotes press control + v and press tab within quotes. $ cat improper_indent.py class Tux(object): print "Hello world.." $ grep " " improper_indent.py print "Hello world.."

Change a specific value in a path
Awk replaces the value of a specific field while retaining the field separator "/" .

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