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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
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.




Commands using cut from sorted by
Terminal - Commands using cut - 457 results
nmap -sP | grep "Nmap scan report for"| cut -d' ' -f 5 > ips.txt
vim $(grep [REGULAR_EXPRESSION] -R * | cut -d":" -f1 | uniq)
tail -f /var/log/messages.log | while read line ; do echo $line | cut -d \ -f5- | sed s/\\[[0-9]*\\]// | espeak ; done
dpkg --list | rgrep ii | cut -d" " -f3 | sed ':a;N;$!ba;s/\n/ /g' | sed 's/^\(.\)/apt-get install \1/'
curl -s mi-ip.net | grep '"ip"' | cut -f2 -d ">" | egrep -o '[0-9.]+'
2012-10-15 16:48:20
User: dragonauta
Functions: cut egrep grep

looks at html for "ip" (it's a CSS class), then a little of cut and egrep to get IPv4 address.

I use this oneliner into conky.

find . \( -iname '*.cpp' -o -iname '*.h' \) -exec wc -l {} \; | sort -n | cut --delimiter=. -f 1 | awk '{s+=$1} END {print s}'
2012-09-19 15:21:01
User: jecxjoopenid
Functions: awk cut find sort wc

Searches for *.cpp and *.h in directory structure, counts the number of lines for each matching file and adds the counts together.

lpstat -p | cut -d' ' -f2 | xargs -I{} lpadmin -x {}
2012-09-18 02:11:53
User: bmeehan
Functions: cut lpadmin lpstat xargs

This is the closest you can get to "reset printing system" from the command line. Giving credit back to J D McIninch from an apple forum back in 2009.

echo $(find <directory> -name '*.<extension>' -exec du -s {} \; | tee $(tty) | cut -f1 | tr '\n' '+') 0 | bc
2012-09-17 22:46:50
User: ysangkok
Functions: cut du echo find tee tr

Also shows files as they are found. Only works from a tty.

getent passwd | cut -d: -f1 | sort
lynx -useragent=Opera -dump 'http://www.facebook.com/ajax/typeahead_friends.php?u=521826202&__a=1' |gawk -F'\"t\":\"' -v RS='\",' 'RT{print $NF}' |grep -v '\"n\":\"' |cut -d, -f2
lynx -useragent=Opera -dump 'http://www.facebook.com/ajax/typeahead_friends.php?u=4&__a=1' |gawk -F'\"t\":\"' -v RS='\",' 'RT{print $NF}' |grep -v '\"n\":\"' |cut -d, -f2
lynx -useragent=Opera -dump 'http://www.facebook.com/ajax/typeahead_friends.php?u=100000475200812&__a=1' |gawk -F'\"t\":\"' -v RS='\",' 'RT{print $NF}' |grep -v '\"n\":\"' |cut -d, -f2
cut -c23-37 /var/log/squid3/access.log | cut -d' ' -f1 | sort | uniq
2012-09-07 14:57:26
User: dan
Functions: cut sort
Tags: squid webproxy

Generates the list of clients (IPs addresses) that have used the Squid webproxy according to the most recent log. Every IP appears only once in the list.

lsmod | tail -n +2 | cut -d' ' -f1 | xargs modinfo | egrep '^file|^desc|^dep' | sed -e'/^dep/s/$/\n/g'
asterisk -rx "core show calls" | grep "active" | cut -d' ' -f1
buf () { oldname=$1; if [ "$oldname" != "" ]; then datepart="$(date +%Y-%m-%d).bak"; firstpart=`echo $oldname | cut -d "." -f 1`; newname=`echo $oldname | sed s/$firstpart/$firstpart.$datepart/`; cp -iv ${oldname} ${newname}; fi }
2012-08-15 08:31:44
User: juliushibert
Functions: cp cut sed

Appends the input file with the date format YYYY-MM-DD.bak. Also runs silently if you remove the -v on the cp at the end of the function.

nmap -n -sP -oG - 10.10.10.*/32 | grep ": Up" | cut -d' ' -f2
2012-08-13 15:37:21
Functions: cut grep

You can substitute 10.10.10.* by your own network. Or whatever nmap accepts, inlcluding submask.

ssh-keygen -l -f [pubkey] | cut -d ' ' -f 2 | tr -ds '\n:' ''
eselect bashcomp enable --global $(eselect bashcomp list | sed -e 's/ //g'| cut -d']' -f2 | sed -e 's/\*//'| xargs)
curl -s http://checkrealip.com/ | grep "Current IP Address" | cut -d ' ' -f 4
ip a s eth0 | grep "inet " | head -n 1 | awk '{print $2}' | cut -f1 -d'/'
2012-07-16 07:54:43
User: thelan
Functions: awk cut grep head
Tags: IP

Get the first IPv4 address of an interface

ifconfig | grep "inet addr" | cut -d":" -f2 | cut -d" " -f1
for user in $(getent passwd|cut -f1 -d:); do echo "### Crontabs for $user ####"; crontab -u $user -l; done
2012-07-11 13:06:17
User: harpo
Functions: crontab cut echo getent
Tags: crontab getent

added echo "### Crontabs for $user ####"; to make clear whose crontab is listed.

for user in $(cut -f1 -d: /etc/passwd); do echo "### Crontabs for $user ####"; crontab -u $user -l; done
2012-07-11 12:25:56
User: harpo
Functions: crontab cut echo
Tags: crontab

added echo "### Crontabs for $user ####"; to make clear whose crontab is listed.

smbclient -N -gL \\SambaServer 2>&1 | grep -e "Disk|" | cut -d'|' -f2