Hide

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. 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.


If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Hide

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:

Hide

News

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.
Hide

Tags

Hide

Functions

Commands using awk from sorted by
Terminal - Commands using awk - 1,111 results
cat *mscache* | awk -F '"' '{print $4":"$2}'
2013-01-06 06:54:57
User: mubix
Functions: awk cat
0

Convert Metasploit?s MSCACHE output to Hashcat version (performed in ~/.msf4/loot/):

finger `whoami` | awk -F: '{ print $3 }' | head -n1 | sed 's/^ //'
history | awk '{if ($2 == "sudo") a[$3]++; else a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
2012-12-31 13:45:03
User: JamieKitson
Functions: awk sort
-1

List of commands you use most often suppressing sudo

history | awk '{if ($2 == "sudo") a[$3]++; else a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
cp -p `ls -l | awk '/Apr 14/ {print $NF}'` /usr/users/backup_dir
curl http://en.m.wikipedia.org/wiki/List_of_Internet_top-level_domains | grep "<tr valign=\"top\">" | awk -F">" '{ print $5 }' | awk -F"<" '{ print $1 }'
2012-12-24 21:00:36
User: sxiii
Functions: awk grep
-4

Oneliner to get domain names list of all existing domain names (from wikipedia)

while sleep 1; do (mpc status;mpc currentsong)|awk 'BEGIN{FS=": "}/^Artist:/{r=r""$2};/^Title:/{r=r" - "$2};/^time:/{r=$2" "r};/^state: play/{f=1}END{if(f==1){print r}}'|echo -ne "\e[s\e[0;0H\e[K\e[0;44m\e[1;33m$(cat -)\e[0m\e[u";done &
2012-12-24 18:03:29
User: ichbins
Functions: awk echo sleep
Tags: bash mpd,
0

Actually this is a shorter version that fits the 255 chars limit of this resource. The full version shows status in the right top corner:

alias mpdd='while sleep 1; do _r=$(awk '\''BEGIN{FS=": "}/^Artist:/{r=r""$2};/^Title:/{r=r" - "$2};/^time:/{r=$2" "r};/^state: play/{f=1}END{if(f==1){print r}}'\'' <(mpc status;mpc currentsong));_l=${#_r};[ $_l -eq 0 ] && continue;[ -z "$_p" ] && _p=$_l;echo -ne "\e[s\e[0;${_p}H\e[K\e[u";_p=$((COLUMNS - _l));echo -ne "\e[s\e[0;${_p}H\e[K\e[0;44m\e[1;33m${_r}\e[0m\e[u";done &'

mpc is defined like this:

function mpc() {

echo "$*" | nc 192.168.1.1 6600

}

/sbin/ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'
while true; do date; ps auxf | awk '{if($8=="D") print $0;}'; sleep 1; done
ip addr show dev eth0 | awk '/inet/ {sub(/\//, " "); print $2}'
2012-12-11 12:12:50
User: 603k
Functions: awk
0

No grep or sed overload, just pure awk.

for i in `eselect bashcomp list | awk '{print $2}'`; do eselect bashcomp enable $i; done
ifconfig |grep broadcast | awk '{print $2}'
2012-12-05 03:57:51
User: fotoflo
Functions: awk grep ifconfig
-12

get the ip address on your LAN

ifconfig |grep broadcast | awk '{print $2}'
ps -ef | awk -v OFS="\n" '{ for (i=8;i<=NF;i++) line = (line ? line FS : "") $i; print NR ":", $1, $2, $7, line, ""; line = "" }'
du . | sort -nr | awk '{split("KB MB GB TB", arr); idx=1; while ( $1 > 1024 ) { $1/=1024; idx++} printf "%10.2f",$1; print " " arr[idx] "\t" $2}' | head -25
2012-12-03 02:59:13
User: agas
Functions: awk du head printf sort
0

Lists the size in human readable form and lists the top 25 biggest directories/files

tail -1000 `ls -ltr /var/log/CF* |tail -1|awk '{print $9}'`|cut -d "," -f 17|sort|uniq -c |sort -k2
2012-11-30 16:30:41
User: raindylong
Functions: awk cut sort tail uniq
0

count & sort one field of the log files , such as nginx/apache access log files .

ps -eo size,pid,user,command --sort -size |awk '{hr[1024**2]="GB";hr[1024]="MB";for (x=1024**3; x>=1024; x/=1024){if ($1>=x){printf ("%-6.2f %s ", $1/x, hr[x]);break}}}{printf ("%-6s %-10s ", $2, $3)}{for (x=4;x<=NF;x++){printf ("%s ",$x)} print ("\n")}'
cd ~/.msf4/loot && cat *mscache* | cut -d '"' -f 2,4 | sed s/\"/\:/g | tr -cd '\11\12\40-\176' | grep -v Username | cut -d : -f 1,2 | awk -F':' '{print $2,$1}' | sed 's/ /:/g' > final.dcc.hash
pacman -Qi | grep 'Name\|Size\|Description' | cut -d: -f2 | paste - - - | awk -F'\t' '{ print $2, "\t", $1, "\t", $3 }' | sort -rn
2012-11-20 03:40:55
Functions: awk cut grep paste sort
0

This, like the other commands listed here, displays installed arch packages. Unlike the other ones this also displays the short description so you can see what that package does without having to go to google. It also shows the largest packages on top. You can optionally pipe this through head to display an arbitrary number of the largest packages installed (e.g. ... | head -30 # for the largest 30 packages installed)

vim `git status | grep modified | awk '{print $3}'`
2012-11-19 09:48:46
User: TetsuyO
Functions: awk grep vim
Tags: vim git
0

This oneliner gets all the 'modified' files in your git repository, and opens all of them in vim.

Very handy when you're starting to work in the morning and you simply want to review your modified files before committing them.

Maybe there are better ways to do that (and maybe integrated in vim and/or git, who knows), but I found quicker to do this oneliner.

awk '/^md/ {printf "%s: ", $1}; /blocks/ {print $NF}' </proc/mdstat
find . -type f -print | awk -F'.' '{print $NF}' | sort | uniq -c
identify path/to/image.jpg | awk '{print $3;}'
for k in `git branch -r|awk '{print $1}'`;do echo -e `git show --pretty=format:"%Cgreen%ci_%C(blue)%c r_%Cred%cn_%Creset" $k|head -n 1`$k;done|sort -r|awk -F"_" '{printf("%s %17s %-22s %s\n",$1,$2,$3,$4)}'
echo /home/foo/dir1/bar | awk -F/ -v OFS=/ '{$3 = "dir2"}1'
2012-10-26 16:17:20
User: zlemini
Functions: awk echo
1

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