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.

OpenID

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:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands using sed

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

Functions

Hide

Credits

Site by David Winterbottom (user root).

Commands using sed

Terminal - Commands using sed - 1,001 results

sed '/foo/ s/foo/foobar/g' <filename>

2013-01-02 08:52:44

User: totti

Functions: sed

Tags: sed file optimize

-5

Up
Down

optimized sed

Use optimized sed to big file/stream to reduce execution time

Use

sed '/foo/ s/foo/foobar/g' <filename>

insted of sed

's/foo/foobar/g' <filename>

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

curl -s http://en.m.wikipedia.org/wiki/List_of_Internet_top-level_domains | sed -n '/<tr valign="top">/{s/<[^>]*>//g;p}'

2012-12-24 23:54:05

User: flatcap

Functions: sed

Tags: sed domain name

Up
Down

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

Quietly get a webpage from wikipedia: curl -s

By default, don't output anything: sed -n

Search for interesting lines: /<tr valign="top">/

With the matching lines: {}

Search and replace any html tags: s/<[^>]*>//g

Finally print the result: p

find -type f | xargs file | grep ".*: .* text" | sed "s;$.*$: .* text.*;\1;"

2012-12-24 07:53:52

User: phunehehe

Functions: file find grep sed xargs

Tags: file list text exclude binary

Up
Down

List all text files (exclude binary files)

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

for line in `wget --referer='http://500px.com/' --quiet -O- http://500px.com/popular | grep "from=popular" | sed -n 's/.*<img src="$[^"]*$".*/\1/p' | sed s/"3.jpg"/"4.jpg"/ | sed s/"?t".*$//`; do wget -O $RANDOM.jpg --quiet "$line"; done

2012-12-07 16:14:36

User: bugmenot

Functions: grep sed

Up
Down

Download the last most popular 20 pictures from 500px

This command downloads the actual 20 most popular pictures from the website 500px. It uses a random name due to the fact the the pictures in 500px are stored with the same name.

UPDATED: doesn't work if no referrer is specified: --referer='http://500px.com/'

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sed "s/^.//g" files

2012-12-07 04:08:55

User: sandeepvreddy

Functions: sed

Up
Down

Remove the first character of each line in a file

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

cat files |sed 's/.$.*$/\1/'

2012-12-06 22:59:16

User: bugmenot

Functions: cat sed

-5

Up
Down

Remove the first character of each line in a file

http://www.ivorde.ro/How_to_remove_first_last_character_from_a_string_using_SED-75.html

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

scrotit(){ echo "Screenshot in $1 seconds...";scrot -d $1 '%Y%m%d%h.png' -e 'curl -sF file1=@- http://ompldr.org/upload < $f | grep -P -o "(?<=File:).*(http://ompldr.org/.*)\<\/a\>";rm $f'| sed -r 's@.*(http://ompldr.org/\w{1,7}).*@\1@';}

2012-12-03 01:21:19

User: dzup

Functions: echo grep rm sed

Up
Down

Screenshot in $1 seconds, upload and retrieve URI from ompdlr.org

Take a screenshot, give $1 seconds pause to choose what to screenshot, then upload and get URI of post in ompdlr.org

omp(){ $*|convert label:@- png:-|curl -sF file1=@- http://ompldr.org/upload | grep -P -o "(?<=File:).*(http://ompldr.org/.*)\<\/a\>" | sed -r 's@.*(http://ompldr.org/\w{1,7}).*@\1@';}

2012-12-02 19:35:29

User: dzup

Functions: grep sed

Up
Down

Create a .png from a command output and upload to ompdlr.org, give URI

Create a .png from output command or whatever, the upload and give URI from ompdlr.org

sed -r "s@\^\[{1,2}([0-9]{1,2}(;[0-9]{1,2})?(;[0-9])?(m|K){1,2})?@@g"

2012-11-29 18:42:32

User: malathion

Functions: sed

Tags: sed color colors ansi

Up
Down

Remove color codes (special characters) with sed

Catches some background colors missed by the highest rated alternative.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

systemd-analyze plot | curl -sF file1=@- http://ompldr.org/upload | grep -P -o "(?<=File:).*(http://ompldr.org/.*)\<\/a\>" | sed -r 's@.*(http://ompldr.org/\w{1,7}).*@\1@'

2012-11-29 18:24:30

User: malathion

Functions: grep sed

Tags: sed grep curl arch linux systemd

-2

Up
Down

Create a chart of systemd service startup time and upload it to an image host

Useful for figuring out which services are lagging the boot time on the system.

svn log -l1000 SVN_URL | sed -n '/USERNAME/,/-----$/ p'

2012-11-28 19:11:20

User: olekhy

Functions: sed

Up
Down

get svn log by the user

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

find . -type f -regex '.*html$' -exec sed -i 's/\xEF\xBB\xBF//' '{}' \;

2012-11-26 09:56:00

User: olekhy

Functions: find sed

Up
Down

Remove UTF-8 Byte Order Mark BOM

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

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

2012-11-26 02:10:08

User: purehate

Functions: awk cat cd cut grep sed tr

Tags: metasploit hashcat

Up
Down

Convert metasploit cachedump files to Hashcat format for cracking

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

cat dump.sql | sed -n -e '/Table structure for table .table1./,/Table structure for table .table2./p'

2012-11-22 23:54:04

User: infojunkie

Functions: cat sed

Tags: mysql sed

-1

Up
Down

Extract single table from a MySQL dump

Given a dump.sql file, extract table1 creation and data commands. table2 is the one following table1 in the dump file. You can also use the same idea to extract several consecutive tables.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

vim `git status --porcelain | sed -ne 's/^ M //p'`

2012-11-21 06:31:46

User: sandre

Functions: sed vim

Tags: vim git

Up
Down

Open (in vim) all modified files in a git repository

The option --porcelain makes the output of git easier to parse.

This one-liner may not work if there is a space in the modified file name.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

wget --no-check-certificate https://code.google.com/p/msysgit/downloads/list -O - 2>nul | sed -n "0,/.*$\/\/msysgit.googlecode.com\/files\/Git-.*\.exe$.*/s//http:\1/p" | wget -i - -O Git-Latest.exe

2012-11-14 08:17:50

User: michfield

Functions: sed wget

Tags: git windows wget

-1

Up
Down

Download latest Git setup executable for Windows

This command should be copy-pasted in Windows, but very similar one will work on Linux.

It uses wget and sed.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

find . -type f |egrep '^./.*\.' |sed -e "s/$^.*\.$$.*$$/\2/" |sort |uniq

2012-11-12 17:17:55

User: dvst

Functions: egrep find sed sort

Up
Down

list uniq extensions of files from the current directory

find files recursively from the current directory, and list the extensions of files uniquely

hl-nonprinting () { local C=$(printf '\033[0;36m') B=$(printf '\033[0;46m') R=$(printf '\033[0m') np=$(env printf "\u00A0\uFEFF"); sed -e "s/\t/${C}▹&$R/g" -e "s/$/${C}⁋$R/" -e "s/[$np]/${B}& $R/g";}

2012-11-07 10:09:40

User: unhammer

Functions: env printf sed

Tags: tabs whitespace non-printing

-1

Up
Down

bash function to highlight non-printing characters: tab, newline, BOM, nbsp

Can't see it here, but the non-breaking space is highlighted :)

Of course,

cat -t -e

achieves something similar, but less colourful.

Could add more code points from https://en.wikipedia.org/wiki/Space_%28punctuation%29#Spaces_in_Unicode

hl-nonprinting () { local C=$(printf '\033[0;36m') R=$(printf '\033[0m'); sed -e "s/\t/${C}▹&$R/g" -e "s/$/${C}⁋$R/";}

2012-11-07 09:55:48

User: unhammer

Functions: printf sed

Tags: tabs whitespace non-printing

-1

Up
Down

bash function to "highlight" tabs and linebreaks

I don't think it's possible to give a (background) colour to the tab itself, since a tab is, IIUC, simply a command to the terminal to move to the right. Nevertheless, this "highlighting" can be helpful when working with tab-separated files.

sed -e "s,/\+$,," -e "s,^/\+,," file.txt

2012-11-02 21:08:30

User: bugmenot

Functions: sed

-1

Up
Down

Remove all trailing slashes on each line of a text file

There can be more than one trailing slash, all of them will be removed.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sed -i 'g/text/d' <filename>

2012-10-31 11:55:22

User: vishnu81

Functions: sed

Up
Down

Remove lines ending or trailing slash (/)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

curl -qsL http://checkip.dyn.com | sed -E "s/^.*Address: ([0-9\.]+).*$/\1/"

2012-10-28 22:20:50

User: wafflesnatcha

Functions: sed

Tags: sed curl ipv4

Up
Down

Get external IP address

Retrieves the current WAN ipv4 address via checkip.dyn.com.

tail -f /var/log/messages.log | while read line ; do echo $line | cut -d \ -f5- | sed s/\\[[0-9]*\\]// | espeak ; done

2012-10-27 23:00:53

User: asdfkajsdfh

Functions: cut echo read sed tail

Up
Down

Pipe system log to espeak

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

(comment:) $ sed -i 's/blah.*/#&/g' file.txt (uncomment:) $ sed -i 's/.$blah*.$/\1/g' file.txt

2012-10-25 16:00:29

User: omatictost

Functions: sed

Up
Down

comment / uncomment a line in a file using sed.

seq 2 100 | factor | sed '/ .* / d ; s/:.*//'

2012-10-25 15:19:35

User: misof

Functions: factor sed seq

Up
Down

List prime numbers from 2 to 100

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

< 1 2 3 4 5 > Last ›