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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
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Commands using cut from sorted by
Terminal - Commands using cut - 491 results
ping -q -c 1 www.google.com|tail -1|cut -d/ -f5
buf () {oldname=$1; if [ "$oldname" != "" ]; then datepart=$(date +%Y-%m-%d); firstpart=`echo $oldname | cut -d "." -f 1`; newname=`echo $oldname | sed s/$firstpart/$firstpart.$datepart/`; cp -i ${oldname} ${newname}; fi }
2010-12-14 19:58:34
User: Seebi
Functions: cp cut date sed

This backup function preserve the file suffix allowing zsh suffix aliases and desktop default actions to work with the backup file too.

for arptable in `arp | grep "eth1" | cut -d " " -f1`; do arp -d $arptable; done
2010-12-14 13:47:47
User: jaimerosario
Functions: arp cut grep

Clears the "arp" table, without entering manually addresses (tested in Ubuntu).

for file in $(find ~/ -iname "*.mp3");do c=$(mp3info $file|grep Genre|cut -f 3 -d :|cut -f 2 -d " ");if [ -z "$c" ];then c="Uncategorized";fi;if [ ! -e $c ];then touch $c.m3u;fi;echo "$file">>$c.m3u;done
sitepass2() {salt="this_salt";pass=`echo -n "$@"`;for i in {1..500};do pass=`echo -n $pass$salt|sha512sum`;done;echo$pass|gzip -|strings -n 1|tr -d "[:space:]"|tr -s '[:print:]' |tr '!-~' 'P-~!-O'|rev|cut -b 2-15;history -d $(($HISTCMD-1));}
2010-12-09 08:42:24
User: Soubsoub
Functions: cut gzip strings tr
Tags: Security

This is a safest variation for "sitepass function" that includes a SALT over a long loop for sha512sum hash

function where(){ COUNT=0; while [ `where_arg $1~$COUNT | wc -w` == 0 ]; do let COUNT=COUNT+1; done; echo "$1 is ahead of "; where_arg $1~$COUNT; echo "by $COUNT commits";};function where_arg(){ git log $@ --decorate -1 | head -n1 | cut -d ' ' -f3- ;}
2010-12-08 15:41:39
User: noisy
Functions: cut echo head wc
Tags: git


where COMMIT

for instance:

where 1178c5950d321a8c5cd8294cd67535157e296554

where HEAD~5

ifconfig | grep -o "inet [^ ]*" | cut -d: -f2
2010-12-06 10:36:52
User: dooblem
Functions: cut grep ifconfig
Tags: ifconfig grep cut

This is what we use.

You can grep -v if you wish.

ifconfig | grep "inet\ " | grep -v "127.0" | sed -e 's/inet\ addr://g' | sed -e 's/Bcast:/\ \ \ \ \ \ \ /g' | cut -c 1-29 | sed -e 's/\ //g'
inet_ip=`ifconfig wlan0 | grep inet | cut -d: -f2 | cut -d ' ' -f1` && echo $inet_ip
2010-11-28 23:06:38
User: fabri8bit
Functions: cut echo grep

can be used within a script to configure iptables for example:


inet_ip=`ifconfig "$iface" | grep inet | cut -d: -f2 | cut -d ' ' -f1`

ipt="sudo /sbin/iptables"



$ipt -A INPUT -i $iface ! -f -p tcp -s $UL -d $inet_ip --sport 1023: --dport 3306 -m state --state NEW,ESTABLISHED -j ACCEPT



$ipt -A OUTPUT -o $iface -p tcp -s $inet_ip -d $UL --sport 3306 --dport 1023: -m state --state ESTABLISHED,RELATED -j ACCEPT


for a in $(date +"%H%M"|cut -b1,2,3,4 --output-delimiter=" ");do case "$a" in 0)echo "....";;1)echo "...*";;2)echo "..*.";;3)echo "..**";;4)echo ".*..";;5)echo ".*.*";;6)echo ".**.";;7)echo ".***";;8)echo "*...";;9)echo "*..*";;esac;done
server=; host="apple.com"; queries=128; for i in `seq $queries`; do let x+=`dig @${server} $host | grep "Query time" | cut -f 4 -d " "`; done && echo "scale=3;($x/${queries})" | bc
dpkg -l | grep ^rc | cut -d' ' -f3 | xargs dpkg -P
svn add `svn status | grep ? | cut -c9-80`
slow2() { ionice -c3 renice -n 20 $(pstree `pidof $1` -p -a -u -A|gawk 'BEGIN{FS=","}{print $2}'|cut -f1 -d " ") ; }
deadlib() { lsof | grep 'DEL.*lib' | cut -f 1 -d ' ' | sort -u; }
2010-11-17 12:53:30
User: Naib
Functions: cut grep sort

emerge,apt-get,yum... all update your system. This will at some point replace either a runtime dependency or a process (which is still running).

This oneliner will list what processes need to be restarted

ps ax -L -o pid,tid,psr,pcpu,args | sort -nr -k4| head -15 | cut -c 1-90
echo `lcg-infosites --vo lhcb ce | cut -f 1| grep [[:digit:]]| tr '\n' '+' |sed -e 's/\ //g' -e 's/+$//'`|bc -l
2010-11-10 15:06:00
User: kbat
Functions: bc cut echo grep sed tr

Of course, this command must be executed at a GRID User Interface

lhcb - name of your VO, substitute it with the one you are interested it.

find / -type f -size +100M -exec du {} \; | sort -n | tail -10 | cut -f 2
find / -type f 2>/dev/null | xargs du 2>/dev/null | sort -n | tail -n 10 | cut -f 2 | xargs -n 1 du -h
2010-11-09 13:45:11
User: mxc
Functions: cut du find sort tail xargs
Tags: disk usage

Often you need to find the files that are taking up the most disk space in order to free up space asap. This script can be run on the enitre filesystem as root or on a home directory to find the largest files.

let NOW=`date +%s`/86400 ; PASS_LAST_CHANGE=`grep $USER /etc/shadow | cut -d: -f3` ; PASS_LIFE=`grep $USER /etc/shadow | cut -d: -f5`; DAYS_LEFT=$(( PASS_LAST_CHANGE + PASS_LIFE - NOW)) ; echo $DAYS_LEFT
2010-11-05 23:03:48
User: EBAH
Functions: cut echo

This works only with GNU date.

In solaris the command:

date +%s

doesn't work.

You can try using the following instead:

nawk 'BEGIN {print srand()}'

should give the same output as date +%s under Solaris.

for i in $(file * | grep broken | cut -d : -f 1); do rm $i; done
curl -s -O http://s3.amazonaws.com/alexa-static/top-1m.csv.zip ; unzip -q -o top-1m.csv.zip top-1m.csv ; head -1000 top-1m.csv | cut -d, -f2 | cut -d/ -f1 > topsites.txt
2010-11-01 01:25:53
User: chrismccoy
Functions: cut head
Tags: curl unzip cut

this will dump a list of domains one per line into a text file

for lib in `readelf -d /usr/bin/abiword | grep NEEDED | cut -f2 -d[ | cut -f1 -d]`; do [ -e /usr/lib/$lib ] && j=/usr/lib/$lib || j=`locate -l 1 $lib`; readlink -f $j ; done
host foo.com|grep " has address "|cut -d" " -f4
2010-10-29 17:01:37
User: dinomite
Functions: cut grep host

Get just the IP address for a given hostname. For best results, make this a function in your shell rc file so that it can be used for things like traceroute:

Titus:~$ traceroute `getip foo.com`

traceroute to (, 64 hops max, 52 byte packets

grep xxxx messages | cut -d ' ' -f 1,2,3
2010-10-22 00:01:00
User: sumudu
Functions: cut grep

first greps syslog for certain events (grep xxxx messages) then displays the 1st 2nd and 3rd fields (-f 1,2,3) seperated by space(-d ' ')