Commands tagged sed sorted by votes

Commands tagged sed (376)

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subtraction between lines
This is sample output - yours may be different.
1

seq 1 3 20 | sed -n '1{h;d};H;x;s/\n/\t/p' | awk '{printf("%d - %d = %d\n", $2, $1, $2-$1)}'

kev · 2011-11-10 10:38:11 6
subtraction between lines

It's allways strange for me to see sed and awk in the same command line if you can avoid it
This is sample output - yours may be different.
1

seq 1 3 20 | awk '{ T[NR]=$1} END {for (i=1;i<=(NR-1);i++) print T[i+1],"-",T[i],"=" , T[i+1]-T[i]}'

benoit_c_lbn · 2011-11-13 10:36:18 6
Rebuild a Delimited File with a Unique Delimiter

Useful for CSV files. In the command, the file in question is comma delimited but contains double quoted fields containing commas and contains no @ symbols (as confirmed with http://www.commandlinefu.com/commands/view/9998/delimiter-hunting). This command converts the delimiting commas to @s while preserving the commas in the fields using the "uniqueString" to mark the ends of lines.
This is sample output - yours may be different.
1

sed 's/$/uniqueString/' file.old | sed 's/,/\n/g' | sed ':loop;/^\"[^\"]*$/N;s/\n/,/;/[^\"]$/t loop' | sed ':loop;N;s/\n/@/g;/uniqueString$/!b loop;s/uniqueString$//' > file.new

moogmusic · 2012-01-06 10:06:40 3
Top 20 commands in your bash history
This is sample output - yours may be different.
1

sed -e 's/[;|][[:space:]]*/\n/g' .bash_history | cut --delimiter=' ' --fields=1 | sort | uniq --count | sort --numeric-sort --reverse | head --lines=20

WissenForscher · 2012-02-17 23:34:16 5
Open the current project on Github by typing gh

Written for Mac OSX. When you are working in a project and want to open it on Github.com, just type "gh" and your default browser will open with the repo you are in. Works for submodules, and repo's that you don't own. You'll need to copy / paste this command into a gh.sh file, then create an alias in your bash or zsh profile to the gh.sh script. Detailed instructions here if you still need help: http://gist.github.com/1917716
This is sample output - yours may be different.
1

git remote -v | grep fetch | sed 's/$.*github.com$[:|/]$.*$.git (fetch)/\2/' | awk {'print "https://github.com/" $1'} | xargs open

brockangelo · 2012-04-15 20:48:46 20
Search google and show only urls

Get the first 10 google results form a querry, but showing only the urls from the results. Use + to search diferent terms, ex: commandlinefu+google . Show Sample Output
This is sample output - yours may be different.
```
$gg commandlinefu
http://www.commandlinefu.com/
http://twitter.com/#!/commandlinefu
http://twitter.com/#!/commandlinefu10
http://xkcd.com/196/
http://www.catonmat.net/blog/top-ten-one-liners-from-commandlinefu-explained/
http://www.makeuseof.com/tag/commandlinefu-amazing-collection-command-line-gems-linux-mac/
http://ankurs.com/2011/11/command-line-fu/
http://kresimirbojcic.com/2011/11/22/unix-command-line-fu.html
http://commandlinefu.uservoice.com/
http://samirahmed.github.com/fu/
```
1

gg(){ lynx -dump http://www.google.com/search?q=$@ | sed '/[0-9]*\..http:\/\/www.google.com\/search?q=related:/!d;s/...[0-9]*\..http:\/\/www.google.com\/search?q=related://;s/&hl=//';}

chon8a · 2012-04-21 03:31:26 6
Show crontabs for all users

This is flatcaps tweaked command to make it work on SLES 11.2
This is sample output - yours may be different.
1

for i in /var/spool/cron/tabs/*; do echo ${i##*/}; sed 's/^/\t/' $i; echo; done

harpo · 2012-07-12 08:07:20 4
Show git branches by date - useful for showing active branches
This is sample output - yours may be different.
1

git for-each-ref --sort='-authordate' --format='%(refname)%09%(authordate)' refs/heads | sed -e 's-refs/heads/--'

ptitfred · 2012-09-25 09:05:09 8
recursive search and replace old with new string, inside files

Search and replace recursively. :-) Shorter and simpler than the others. And allows more terms: replace old new [old new ...] -- `find -type f`
This is sample output - yours may be different.
1

replace old new -- `find -type f`

brian · 2012-12-13 20:22:17 6
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 Show Sample Output
This is sample output - yours may be different.
```
.aero
.asia
.biz
.cat
.com
.coop
.info
.int
.jobs
.mobi
.museum
... ETC
```
1

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

flatcap · 2012-12-24 23:54:05 7
Put uppercase letters in curly brackets in a BibTeX database

It is often recommended to enclose capital letters in a BibTeX file in braces, so the letters will not be transformed to lower case, when imported from LaTeX. This is an attempt to apply this rule to a BibTeX database file. DO NOT USE sed '...' input.bib > input.bib as it will empty the file! How it works: /^\s*[^@%]/ Apply the search-and-replace rule to lines that start (^) with zero or more white spaces (\s*), followed by any character ([...]) that is *NOT* a "@" or a "%" (^@%). s=<some stuff>=<other stuff>=g Search (s) for some stuff and replace by other stuff. Do that globally (g) for all matches in each processed line. $[A-Z][A-Z]*$$[^}A-Z]\|},$$ Matches at least one uppercase letter ([A-Z][A-Z]*) followed by a character that is EITHER not "}" and not a capital letter ([^}A-Z]) OR (|) it actually IS a "}", which is followed by "," at the end of the line ($). Putting regular expressions in escaped parentheses ($ and $, respectively) allows to dereference the matched string later. {\1}\2 Replace the matched string by "{", followed by part 1 of the matched string (\1), followed by "}", followed by the second part of the matched string (\2). I tried this with GNU sed, only, version 4.2.1. Show Sample Output
This is sample output - yours may be different.
```
@ARTICLE{Duck06,
  author = {{D}onald {D}uck and {D}aisy {D}uck and {S}crooge {M}c{D}uck},
  title = {{T}he danger of magnetic storms for {D}uckburg},
  journal = {{D}uckburg {T}ribune},
  year = {2006},
  volume = {56},
  pages = {386--394},
  number = {2},
  month = {{A}ug},
  owner = {{D}ucky {D}uke}
}
```
1

sed '/^\s*[^@%]/s=$[A-Z][A-Z]*$$[^}A-Z]\|},$$={\1}\2=g' literature.bib > output.bib

michelsberg · 2013-01-15 22:24:17 10
display the hover text of the most recent xkcd

I look at xkcd in my news reader, but it displays the image's title attribute only for a few seconds which makes reading the longer ones more challenging. So I use this to display it in my console.
This is sample output - yours may be different.
1

curl -s 'http://xkcd.com/rss.xml' | xpath '//item[1]/description/text()' 2>&1 | sed -n 's/.*title="$[^"]*$".*/\1/p' | fold -s

putnamhill · 2013-02-16 22:38:26 7
Recursively search and replace old with new string, inside every instance of filename.ext

This is a slightly modified version of http://www.commandlinefu.com/commands/view/4283/recursive-search-and-replace-old-with-new-string-inside-files (which did not work due to incorrect syntax) with the added option to sed inside only files named filename.ext
This is sample output - yours may be different.
1

find . -type f -name filename.exe -exec sed -i "s/oldstring/oldstring/g" {} +;

eddieb · 2013-05-20 19:17:10 11
psgrepp

grep по ps aux
This is sample output - yours may be different.
1

ps aux | grep $(echo $1 | sed "s/^$.$/[\1]/g")

opexxx · 2013-07-16 10:10:51 6
Download all images from a 4chan thread

first grep all href images then sed the url part then wget
This is sample output - yours may be different.
1

curl -s $1 | grep -o -i '<a href="//images.4chan.org/[^>]*>' | sed -r 's%.*"//([^"]*)".*%\1%' | xargs wget

bugmenot · 2013-07-22 10:33:55 6
List your largest installed packages (on Debian/Ubuntu)

The other commands were good, but they included packages that were installed and then removed. This command only shows packages that are currently installed, sorts smallest to largest, and formats the sizes to be human readable. Show Sample Output
This is sample output - yours may be different.
```
0.021 MB         php5
0.025 MB         libjpeg8
0.025 MB         libjpeg-progs
0.025 MB         ttf-droid
0.026 MB         ubuntu-restricted-addons
0.028 MB         apache2
0.028 MB         libperl5.14
. . .
49.584 MB        thunderbird
142.796 MB       linux-image-3.2.0-49-generic
156.440 MB       google-chrome-stable
195.852 MB       nvidia-current
```
1

dpkg-query --show --showformat='${Package;-50}\t${Installed-Size}\n' `aptitude --display-format '%p' search '?installed!?automatic'` | sort -k 2 -n | grep -v deinstall | awk '{printf "%.3f MB \t %s\n", $2/(1024), $1}'

EvilDennisR · 2013-07-26 23:18:20 13
Get the current svn branch/tag (Good for PS1/PROMPT_COMMAND cases)

uses just one sed
This is sample output - yours may be different.
1

svn info | sed -n "/URL:/s/.*\///p"

massi · 2013-07-31 11:02:22 9
Search and replace in multiple files recursively

Replace "foo" with "bar" in all files in current directory recursively
This is sample output - yours may be different.
1

grep -lr "foo" . | xargs sed -i "s/foo/bar/g"

sergeylukin · 2013-10-28 13:02:47 10
Download latest NVIDIA Geforce x64 Windows driver

Download latest NVIDIA Geforce x64 Windows7-8 driver from Nvidia's website. Pulls the latest download version (which includes beta). This is the "English" version. The following command includes a 'sed' line to replace "english" with "international" if needed. You can also replace the starting subdomain with "eu." "uk." and others. Enjoy this one liner! 1 character under the max :) wget "us.download.nvidia.com$(wget -qO- "$(wget -qO- "nvidia.com/Download/processFind.aspx?psid=95&pfid=695&osid=19&lid=1&lang=en-us" | awk '/driverResults.aspx/ {print $4}' | cut -d "'" -f2 | head -n 1)" | awk '/url=/ {print $2}' | sed -e "s/english/international/" | cut -d '=' -f3 | cut -d '&' -f1)" Show Sample Output
This is sample output - yours may be different.
```
HTTP request sent, awaiting response... 200 OK
Length: 211183464 (201M) [application/octet-stream]
Saving to: ?331.82-desktop-win8-win7-winvista-64bit-english-whql.exe?
```
1

wget "us.download.nvidia.com$(wget -qO- "$(wget -qO- "nvidia.com/Download/processFind.aspx?psid=95&pfid=695&osid=19&lid=1&lang=en-us"|awk '/driverResults.aspx/ {print $4}'|cut -d "'" -f2|head -n 1)"|awk '/url=/ {print $2}'|cut -d '=' -f3|cut -d '&' -f1)"

lowjax · 2013-11-21 03:04:59 11
calculate how much bogomips one cpu core has (assuming you have 4 cores).

on some distro's you have to replace "BogoMIPS" with "bogomips". Show Sample Output
This is sample output - yours may be different.
```
#([04:33:58][root@fritz:~]#)cat /proc/cpuinfo | grep BogoMIPS | uniq | sed 's/^.*://g' | awk '{print($1 / 4) }'
52.8375
```
1

cat /proc/cpuinfo | grep BogoMIPS | uniq | sed 's/^.*://g' | awk '{print($1 / 4) }'

derpat · 2014-03-01 03:44:03 6
camelcase to underscore

Convert a camelCase string into snake_case. To complement senorpedro's command. Show Sample Output
This is sample output - yours may be different.
```
$ echo thisIsATest | sed -r 's/([A-Z])/_\L\1/g'
this_is_a_test
```
1

echo thisIsATest | sed -r 's/([A-Z])/_\L\1/g'

flatcap · 2014-04-11 13:36:08 11
Print the IP address and the Mac address in the same line

Print the IP address and the Mac address in the same line Show Sample Output
This is sample output - yours may be different.
```
mac:00:50:12:BD:5E:5B - adr:192.168.0.1
```
1

ifconfig | head -n 2 | tr -d '\n' | sed -n 's/.*$00:[^ ]*$.*$adr:[^ ]*$.*/mac:\1 - \2/p'

Koobiac · 2014-09-03 14:35:27 18

Parse compressed apache error log file and show top errors

credit shall fall to this for non-gzipped version: https://gist.github.com/marcanuy/a08d5f2d9c19ba621399 Show Sample Output

zanhsieh · 2014-09-24 05:26:24 8

Print the IPv4 address of a given interface
This is sample output - yours may be different.
1

ip a s eth0 | sed -nr 's!.*inet ([^/]+)/.*!\1!p'

swemarx · 2014-10-29 12:50:05 9
Change host name

With sed you can replace strings on the fly.
This is sample output - yours may be different.
1

sed -i 's/oldname/newname/' /etc/hosts /etc/hostname

adria · 2014-11-02 22:03:48 24
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Install pip with Proxy

Installs pip packages defining a proxy

Put split files back together, without a for loop

After splitting a file, put them all back together a lot faster then doing $cat file1 file2 file3 file4 file5 > mainfile or $for i in {0..5}; do cat file$i > mainfile; done When splitting, be sure to do split -d for getting numbers instead of letters

Check whether laptop is running on battery or cable

If you want to do the same in OS X... grep as necessary for information you need....

Given process ID print its environment variables

Same as previous but compatible with BSD/IPSO

Backup with versioning

Apart from an exact copy of your recent contents, also keep all earlier versions of files and folders that were modified or deleted. Inspired by EVACopy http://evacopy.sourceforge.net

Synchronize both your system clock and hardware clock and calculate/adjust time drift

Do not run this command if you already have ntpd running! This needs to run as root, for example with sudo: $ sudo ntpdate pool.ntp.org && sudo hwclock --systohc && sudo hwclock --adjust This command will fetch accurate time from NTP servers and synchronize your system clock, then it will use the system clock to synchronize your hardware clock, and will calculate the time drift.

see the TIME_WAIT and ESTABLISHED nums of the network

FizzBuzz in one line of Bash

The (in)famous "FizzBuzz" programming challenge, answered in a single line of Bash code. The "|column" part at the end merely formats the output a bit, so if "column" is not installed on your machine you can simply omit that part. Without "|column", the solution only uses 75 characters. The version below is expanded to multiple lines, with comments added. for i in {1..100} # Use i to loop from "1" to "100", inclusive. do ((i % 3)) && # If i is not divisible by 3... x= || # ...blank out x (yes, "x= " does that). Otherwise,... x=Fizz # ...set x to the string "Fizz". ((i % 5)) || # If i is not divisible by 5, skip (there's no "&&")... x+=Buzz # ...Otherwise, append (not set) the string "Buzz" to x. echo ${x:-$i} # Print x unless it is blanked out. Otherwise, print i. done | column # Wrap output into columns (not part of the test).

Runs previous command but replacing

Replaces the first instance of 'foo' with 'bar'. To replace all instances of 'foo' with 'bar': !!:gs/foo/bar/

bash-quine

this command prints itself out. it doesn't need to be stored in a file and it isn't as easy as $ echo $BASH_COMMAND for information on quines see http://en.wikipedia.org/wiki/Quine_(computing)

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Commands tagged sed (376)

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