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2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands
To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner
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2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.
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Commands tagged fun from sorted by
Terminal - Commands tagged fun - 10 results
figlet -f roman message
echo -e "CHECK=SAMPLE" output --command_to_long
2013-04-03 08:46:47
User: techie
Functions: echo
-1

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.

yum install fortune-firefly; fortune
<commmand>; if [[ "$?" = 0 ]]; then echo ':)'; else echo ':('; fi
2010-08-23 20:35:31
User: potatoface
Functions: echo
Tags: fun funny
3

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 ;)

fortune | cowsay -f tux
fortune | cowsay
cowsay $(fortune)
seq 1 12 | sed 1,5d ; seq 1 12 | head --lines=-5
2009-08-01 00:41:52
User: flux
Functions: head sed seq
Tags: sed tail HEAD fun
0

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

cal 09 1752
2009-04-22 00:13:19
User: flux
Functions: cal
Tags: date fun
10

The British Government entering in the Gregorian era.

sl