Commands using sed sorted by votes

Commands using sed (1,319)

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Generate an XKCD #936 style 4 word password

The first grep rejects capitalised words since the dict has proper nouns in it that you mightn't want to use. The second grep rejects words with ending in apostrophe s, and the third forces the words to be at least 15 characters long. Show Sample Output
This is sample output - yours may be different.
```
counterproductive unreasonableness multimillionaires extemporaneously
```
-2

cat /usr/share/dict/words | grep -P ^[a-z].* | grep -v "'s$" | grep -Pv ^.\{1,15\}$ | shuf -n4 | tr '\n' ' ' | sed 's/$/\n/'

bugmenot · 2011-08-15 01:03:48 6
Find/Replace in a bunch of files and keep a log of the changes

This is a more concise answer to http://blog.commandlinekungfu.com/2011/09/episode-158-old-switcheroo.html in my opinion.
This is sample output - yours may be different.
-2

find . -type f | xargs grep -n "Old Text" | tee filesChanged.txt | sed 's/:.*$//' | xargs sed -i 's/Old Text/New Text/g

moogmusic · 2011-09-06 10:28:36 3
Get the latest version of phpMyAdmin

This is to get the latest version of phpMyAdmin to support scripts to download the latest version of the software if they want to automatically update. Show Sample Output
This is sample output - yours may be different.
```
3.4.4-all-languages
```
-2

wget http://tools.web4host.net/versions.tmp --quiet -O - | grep PHPMYADMIN | sed 's/PHPMYADMIN=//' | cat

wr8cr8 · 2011-09-22 04:11:44 3
Get the host from where you logged in

Will print the host associated with the current stdin. This is useful to set the DOIT_SERVER for the doit remote execution agent ( http://www.chiark.greenend.org.uk/~sgtatham/doit/ ) export DOIT_HOST=$(who -m | sed 's/.*($.*$).*/\1/') Note that SSH_CLIENT variable can be lost if you use su or sudo (if set to reset vars) Show Sample Output
This is sample output - yours may be different.
```
mypc01
```
-2

who -m | sed 's/.*($.*$).*/\1/'

keymon · 2011-09-22 10:28:30 8
Show the single most recently modified item in a directory

wrap it in a function if you like... lastfile () { ls -ltp | sed '1 d' | head -n1 } Show Sample Output
This is sample output - yours may be different.
```
-rw-r--r--    1 root     root           118 Dec 31  1969 default.prop
```
-2

ls -ltp | sed '1 d' | head -n1

linuxrawkstar · 2011-10-17 16:21:15 7
geoip information
This is sample output - yours may be different.
-2

geoip() { wget -qO - http://freegeoip.net/xml/$1 | sed '3,12!d;s/<//g;s/>/: /g;s/\/.*//g' ; }

vando · 2011-10-25 21:07:08 45
list current ssh clients
This is sample output - yours may be different.
-2

netstat -atn | grep :22 | grep ESTABLISHED | awk '{print $4}' | sed 's/:22//'

agambier · 2011-11-09 10:51:55 4
turn url and link text into a hyperlink

an extension of command 9986 by c3w, allows for link text. http://google.com,search engine will link the hyperlink with the text after the url instead of linking with the url as linktext Show Sample Output
This is sample output - yours may be different.
```
<a href="http://google.com">search engine</a>
```
-2

sed "s/$[a-zA-Z]*\:\/\/[^,]*$,$.*$/\<a href=\"\1\"\>\2\<\/a\>/"

chrismccoy · 2012-01-06 13:55:05 13
Rank top 10 most frequently used commands

I make an extensive use of sudo, so I had to exclude the sudo part of the command history
This is sample output - yours may be different.
-2

history | sed -e 's/^sudo //' | awk '{print $2}' | sort | uniq -c | sort -rn | head

bibe · 2012-01-07 22:29:54 3
ls output - octal
This is sample output - yours may be different.
-2

ls -l | sed -e 's/--x/1/g' -e 's/-w-/2/g' -e 's/-wx/3/g' -e 's/r--/4/g' -e 's/r-x/5/g' -e 's/rw-/6/g' -e 's/rwx/7/g' -e 's/---/0/g'

Habitual · 2012-01-08 15:25:17 5
Get KDE version

kded --version return this Qt: 3.3.8b KDE: 3.5.10 KDE Daemon: $Id: kded.cpp 711061 2007-09-11 09:42:51Z tpatzig $ awk -F: ................. Awk Field separator NR == 2 ................. Register Number, second line {print $2} ............... second field sed 's/\s\+//g' .......... remove one space or more \s\+ changing by nothing Show Sample Output
This is sample output - yours may be different.
```
3.5.10
```
-2

kded --version | awk -F: 'NR == 2 {print $2}' | sed 's/\s\+//g'

voyeg3r · 2012-01-17 17:44:23 5
Convert HH:MM:SS into seconds

Show Sample Output
This is sample output - yours may be different.
```
1776
```
-2

echo 00:29:36 | sed s/:/*60+/g | bc

debyatman · 2012-08-11 00:47:47 21
Deleting / Ignoring tailer record from the file

sed '$ d' foo.txt.tmp ...deletes last line from the file
This is sample output - yours may be different.
-2

cp foo.txt foo.txt.tmp; sed '$ d' foo.txt.tmp > foo.txt; rm -f foo.txt.tmp

kaushalmehra · 2012-09-13 20:57:40 7
Get the /dev/disk/by-id fragment for a physical drive

This was tested on Ubuntu 12.04 (Precise) LTS Server. It returns the name of the symlink within /dev/disk/by-id for the physical drive you specify. Change /dev/sda to the one you want, and replace ata- with scsi- or the appropriate type for your drive. I used this to pre-configure grub-pc during a non-interactive install because I had to tell it which disk to install grub on, and physical disks don't have a UUID such as that blkid provides.
This is sample output - yours may be different.
-2

ls -l /dev/disk/by-id | egrep ata-.*`hdparm -i /dev/sda | grep SerialNo | sed 's/.*SerialNo=//' | tr -d "\n"`.*sda$ | sed -e 's/.*ata-/ata-/' -e 's|[ ].*||' | tr -d "\n"

wizonesolutions · 2013-01-07 10:20:25 6
a find and replace within text-based files
This is sample output - yours may be different.
-2

find /path/ -type f -exec grep -l '<string of text>' {} \; | xargs sed -i -e 's%<string of text>%<new text string>%g'

leonteale · 2013-02-07 18:47:01 5
Print all lines containing the word 'jan' to a new file.
This is sample output - yours may be different.
-2

sed -n '/jan\|Jan\|JAN\|JAn\|jAn\|jAN\|jaN/p' data.txt > jan-only-data.txt

Kali_Root · 2013-11-15 20:23:53 8
Get the password for PostgreSQL backend db for VMware vRA
This is sample output - yours may be different.
-2

grep -i s2enc /etc/vcac/server.xml | sed -e 's/.* password=\"$[^\"]*$\".*/\1/' | xargs -n 1 vcac-config prop-util -d --p 2>/dev/null; echo

tsener · 2017-03-28 14:11:55 19
hardcode dnsserver, no more rewriting of etc/resolv.conf

runs in background rewriting /etc/resolv.conf periodically dns
This is sample output - yours may be different.
-2

while sudo sed -i -e 's/^$nameserver$.*$/\1 $dns/' /etc/resolv.conf; do sleep 15; done &

dav23r · 2018-05-14 16:03:08 154
Analyse a PHP file for instantations and static calls

This grabs all lines that make an instantation or static call, then filters out the cruft and displays a summary of each class called and the frequency. Show Sample Output
This is sample output - yours may be different.
```
1 parent
1 product_Item
1 promotion_Base
1 swc_Response
2 product_ViewHelper
2 product_ViewTransformer
4 promotion_Tab
5 site_Template
6 self
```
-3

grep -o "$new \(\w\+$\|\w\+::\)" file.php | sed 's/new \|:://' | sort | uniq -c | sort

root · 2009-01-26 12:08:47 56
Display directory hierarchy listing as a tree

Shows the current directory and those below it in a simple tree structure. Recommended use: alias lt='$command_above'
This is sample output - yours may be different.
-3

ls -R | grep : | sed -e '\''s/:$//'\'' -e '\''s/[^-][^\/]*\//--/g'\'' -e '\''s/^/ /'\'' -e '\''s/-/|/'\''

scw · 2009-02-09 22:32:01 16
Download a complete podcast

This download a complete audio podcast
This is sample output - yours may be different.
-3

wget -c -v -S -T 100 --tries=0 `curl -s http://ms1.espectador.com/ podcast/espectador/la_venganza_sera_terrible.xml | grep -v xml | grep link | sed 's/]*>//g'`

fmdlc · 2009-03-04 13:12:28 5
Look for a string in one of your codes, excluding the files with svn and ~ (temp/back up files)

Look for a string in one of your codes, excluding the files with svn and ~ (temp/back up files). This can be useful when you're looking for a particular string in one of your source codes for example, inside a directory which is under version control (e.g. svn), removing all the annoying files with ~ (tilde) from the search. you can even change the command after -exec to delete (rm) or view (cat) files found by 'find' for example
This is sample output - yours may be different.
-3

find . -type f -exec grep StringToFind \{\} --with-filename \;|sed -e '/svn/d'|sed -e '/~/d'

f241vc15 · 2009-03-31 18:09:31 7
Print out "string" between "match1" and "match2"

But who knows to delete the rest of the lines? I want only "string".
This is sample output - yours may be different.
-3

echo "string" | sed -e 's/.*match1//' -e 's/match2.*$//'

P17 · 2009-04-01 15:01:27 8
remove exact phrase from multiple files

Linux : these script enable you to edit multiple files and remove exact phrase from multiple files
This is sample output - yours may be different.
-3

grep -r "mystring" . |uniq | cut -d: -f1 | xargs sed -i "s/mystring//"

mohamednasr2000 · 2009-04-09 12:49:01 9
Join lines
This is sample output - yours may be different.
-3

echo -e "aa\nbb\ncc\ndd\n123" | sed -e :a -e "/$/N; s/\n/;/; ta"

unixmonkey3251 · 2009-04-15 16:12:00 7
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Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

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compgen -c finds everything in your path.

check open ports without netstat or lsof

Stream the latest offering from your fave netcasts/podcasts

This is a quick line to stream in the latest offerings of your favorite netcasts/podcasts. You will need to have a file named netcast.txt in the directory you run this from. This file should have one and only one of your netcast's/podcst's url per line. When run the line grabs the offering on the top of the netcast/podcast stack and end it over , quietly, to vlc. Since I move around computers during the day I wanted an easy way to listen to my daily dose of news and such without having to worry about downloading to whatever machine I am on. This is just a quick grab and stream of whats current. Future plans... have the list of netcasts be read from the web. possibly an rss or such. I use greader so there might be a way to use it as the source so as not to have to muck with multiple lists

Find all files with colons and replace with underscores; current directory and below (recursive).

create a colorful 田 image

ssh: change directory while connecting

Useful to create an alias that sends you right in the directory you want : alias server-etc="ssh -t server 'cd /etc && $SHELL'"

gpg decrypt a file

gpg command to decrypt a previously encrypted file on the command line. Can be optionally made into an alias: alias decrypt='gpg --output foo.txt --decrypt foo.txt.pgp'

urldecoding with one pure BASH builtin

You can use ordinary printf to convert "%23%21%2fbin%2fbash" into "#!/bin/bash" with no external utilities, by using a little known printf feature -- the "%b" specifier converts shell escapes. Replace % with \x and printf will understand the urlencoded string. BASH's printf has an extension to set a variable directly, too. So you get to convert urlencoded strings from garble to plaintext in one step with no externals and no backticks.

Set laptop display brightness

Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

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Commands using sed (1,319)

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