Commands using sed sorted by votes

Commands using sed (1,319)

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glob /mnt

_ff(){ cd /mnt; echo /mnt/*/* |sed ' s/ \/mnt\//\&/g; '|sed '/'"$1"'/!d'; cd -; } ff(){ case $# in 0) echo "usage: ff glob [sed-cmds] [--|var-name]" ;; 1) _ff $1 |sed = ;; [2-9]) case $2 in --) _ff $1 |less -SN ;; *) _ff $1 |sed -n ''"$2"''|tr '\n' '\040' |sed 's/.*/export '"$3"'=\"&/;s/=\" /=\"/;s/ $/\"/' > $HOME/.ff; case $# in 3) . $HOME/.ff ;; esac; sed ' s/export .*=\"/\$'"$3"' = \"/;' $HOME/.ff;\ ;; esac ;; esac; } v(){ local a=$HOME; sed ' s/export /less -n \$/; s/=.*//; ' $a/.ff > $a/.v ; . $a/.v ; } Another approach using ls(1) lsl(){ _lsl () { ls -l $3 /mnt/*/$1* 2>/dev/null; }; case $# in 0) echo "usage: lsl pat [ls-options|result-no]"; echo "usage: lsle pat [sed-cmds]" ;; 1) _lsl $1 |sed = ;; 2) case $2 in -*) _lsl $1 $@;; *) _lsl $1 |sed 's/.* //; '"$2"'!d; '"$2"'q' > $HOME/.lsl ; export v=$(sed 1q $HOME/.lsl); echo \$v = $v ;; esac ;; esac; } exp(){ echo "%s/\$/ /"; echo "%j"; echo "s/^/export v=\""; echo "s/\$/\""; echo "s/ \"\$/\""; echo "."; echo "wq"; } lsle(){ lsl $1 -1 |sed $2 > .lsl&& exp |ed -s .lsl >&-&& . .lsl&& echo \$v = $v; }
This is sample output - yours may be different.
-5

_ff(){ cd /mnt;echo /mnt/*/* |sed 's/ \/mnt\//\&/g' |sed '/'"$1"'/!d'; cd -;}

argv · 2011-12-30 23:25:31 5

Remove a line from a file using sed (useful for updating known SSH server keys when they change)

When you SSH to a server who's hostname or IP has changed since the last time a connection was recorded in the known_hosts file a warning will be displayed since this indicated a possible DNS spoofing attack. If this is a known change then this command will remove the previous entry and allow the SSH connection. The SSH client will prompt you as if it was the first time connected to the server. Replace ${LINE} with the line of the offending key in ~known_hosts. 49 in the sample output. Show Sample Output

-5

sed -i '${LINE}d' ~/.ssh/known_host

lucasrangit · 2012-01-16 18:00:12 6

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
This is sample output - yours may be different.
-5

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

bugmenot · 2012-12-06 22:59:16 4
run vlc as root

Enable root user to run VLC
This is sample output - yours may be different.
-5

sed -i 's/geteuid/getppid/g' /usr/bin/vlc

nadavkav · 2014-11-21 17:43:59 13
remove all spaces from all files in current folder
This is sample output - yours may be different.
-5

ls -1 | while read a; do mv "$a" `echo $a | sed -e 's/\ //g'`; done

antonangeli · 2015-10-27 12:52:47 14
convert DOS newlines to unix newlines
This is sample output - yours may be different.
-6

sed 's/$//'

grep · 2009-02-16 21:04:37 10
Change password in list of xml files with for and sed
This is sample output - yours may be different.
-6

for i in `ls *xml`; do sed -e 's,oldpassword,newpassword,g' $i > $i.2 && mv -f $i.2 $i ; done

irraz · 2009-04-24 08:53:40 9
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>
This is sample output - yours may be different.
-6

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

totti · 2013-01-02 08:52:44 391
Speak the last 3 tweets on Mac OS

You need curl.. and a Mac of course.
This is sample output - yours may be different.
-7

curl -s -u user:password http://twitter.com/statuses/friends_timeline.rss | grep title | sed -ne 's/<\/*title>//gp' | head -n 4 | say -v Bruce

sixtus · 2009-03-20 20:14:13 5
Altera texto dentro dos arquivos retornados pelo comando 'find' (find and replacing strings on all files in directory)

Esse comando procura por arquivos php que que iniciem com ' Show Sample Output
This is sample output - yours may be different.
```
$
```
-8

find ./wp-content/themes/rotce2009/ -name '*.php' -type f | xargs sed -i 's/<? /<?php /g'

anestesya · 2009-12-16 19:01:12 4
Recursively remove .svn directories
This is sample output - yours may be different.
-8

ls -RAx | grep "svn:$" | sed -e "s/svn:/svn/" | xargs rm -fr

ook · 2010-02-23 08:42:15 3
Remove "#' from configuration files.
This is sample output - yours may be different.
-8

sed -i -e 's/^#$//g' /path/to/file

leonardovaz · 2010-04-22 02:40:22 4
Returns the absolute path to a command, using which if needed

This works in multiple unixes, not only linux, for different paths. On solaris, if you do not have which, you can use: ksh whence -p anypath/a_command.sh | sed "s|^./|$(pwd)|" ksh whence -p Show Sample Output
This is sample output - yours may be different.
```
/absolute_path/any_path/a_command.sh
```
-8

which any_path/a_command.sh | sed "s|^./|$(pwd)|"

keymon · 2011-09-22 10:38:56 6
Remove all zero size files from current directory (not recursive)

Remove all zero size files from current directory. Its a not recursive option like: find . -size 0c -exec rm {} \;
This is sample output - yours may be different.
-8

ls -s|grep -E "^ *0"|sed "s/^ *0 //g"|xargs -i rm "{}"

glaudiston · 2012-04-18 14:50:46 6
list with full path

Use the -a flag to display all files, including hidden files. If you just want to display regular files, use a -1 (yes, that is the number one). Got this by RTFM and adding some sed magic. [bbbco@bbbco-dt ~]$ ls -a | sed "s#^#${PWD}/#" /home/bbbco/. /home/bbbco/.. /home/bbbco/2011-09-01-00-33-02.073-VirtualBox-2934.log /home/bbbco/2011-09-10-09-49-57.004-VirtualBox-2716.log /home/bbbco/.adobe /home/bbbco/.bash_history /home/bbbco/.bash_logout /home/bbbco/.bash_profile /home/bbbco/.bashrc ... [bbbco@bbbco-dt ~]$ ls -1 | sed "s#^#${PWD}/#" /home/bbbco/2011-09-01-00-33-02.073-VirtualBox-2934.log /home/bbbco/2011-09-10-09-49-57.004-VirtualBox-2716.log /home/bbbco/cookies.txt /home/bbbco/Desktop /home/bbbco/Documents /home/bbbco/Downloads ... Show Sample Output
This is sample output - yours may be different.
```
[bbbco@bbbco-dt ~]$ ls -a | sed "s#^#${PWD}/#"
/home/bbbco/.
/home/bbbco/..
/home/bbbco/2011-09-01-00-33-02.073-VirtualBox-2934.log
/home/bbbco/2011-09-10-09-49-57.004-VirtualBox-2716.log
/home/bbbco/.adobe
/home/bbbco/.bash_history
/home/bbbco/.bash_logout
/home/bbbco/.bash_profile
/home/bbbco/.bashrc
...
```
-9

ls -a | sed "s#^#${PWD}/#"

bbbco · 2011-12-16 22:19:06 6
List only directories, one per line

Normally, if you just want to see directories you'd use brianmuckian's command 'ls -d *\', but I ran into problems trying to use that command in my script because there are often multiple directories per line. If you need to script something with directories and want to guarantee that there is only one entry per line, this is the fastest way i know Show Sample Output
This is sample output - yours may be different.
```
seth@Laptop:~$ ls -l | grep ^d  | sed 's:.*\ ::g'
Downloads
Music
Pictures
Videos
VMs
bin
block
qBT_dir
warlord
xp
evil_stuff
seth@Laptop:~$ 
```
-10

ls -l | grep ^d | sed 's:.*\ ::g'

LinuxMan · 2011-08-06 23:52:46 9
get you public ip address
This is sample output - yours may be different.
-11

/usr/bin/lynx -dump http://www.netins.net/dialup/tools/my_ip.shtml | grep -A2 "Your current IP Address is:" | tail -n1 | tr -d ' '|sed '/^$/d'| sed 's/^ *//g'

juanmi · 2010-12-20 15:29:53 4
send Everyone on your machine some love

This works just like write or wall ... cept one thing the sender is anonymous ... if you really want to drive everyone insane replace echo \"The Matrix has you...\" with cat /dev/urandom nice one to do on April fool's day Show Sample Output
This is sample output - yours may be different.
```
The Matrix has you... (on all writable ttys)
```
-12

w | egrep -v '(load|FROM)' | awk '{print $2}' | sed 's/^/tty/' | awk '{print "echo \"The Matrix has you...\" >> /dev/" $1}' | bash

copremesis · 2009-04-29 22:04:56 10
Remove "ssh host" from known hosts file.

I have this as a file called deletekey in my ~/bin. Makes life a little easier.
This is sample output - yours may be different.
-13

echo "${1}" | egrep '^[[:digit:]]*$' ; if [ "$?" -eq 0 ] ; then sed -i "${1}"d $HOME/.ssh/known_hosts ; else printf "\tYou must enter a number!\n\n" ; exit 1 ; fi

DaveQB · 2010-07-11 23:09:11 3
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Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Check if you work on a virtual/physical machine in Linux

Command used to know if we are working on a virtual or physical machine. This command will use the dmidecode utility to retrieve hardware information of your computer via the BIOS. Run this command as root or with sudo.

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Install pip with Proxy

Installs pip packages defining a proxy

List files in directory tree with newest last

A command line calculator in Perl

Once I wrote a command line calculator program in C, then I found this... and added to it a bit. For ease of use I normally use this in a tiny Perl program (which I call pc for 'Perl Calculator') #!/usr/bin/perl -w die "Usage: $0 MATHS\n" unless(@ARGV);for(@ARGV){s/x/*/g;s/v/sqrt /g;s/\^/**/g}; print eval(join('',@ARGV)),$/; It handles square roots, power, modulus: $ pc 1+2 (1 plus 2) 3 $ pc 3x4 (3 times 4) 12 $ pc 5^6 (5 to the power of 6) 15625 $ pc v 49 ( square root of 49 ) 7 $ pc 12/3 (12 divided by 3) 4 $ pc 19%4 (19 modulus 4) 3 (you can string maths together too) $ pc 10 x 10 x 10 1000 $ pc 10 + 10 + 10 / 2 25 $ pc 7 x v49 49

Change a specific value in a path

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

Simple example of the trap command

Command line calculator

This opens a python command line. You can use math and random and float-division is enabled (without appending .0 to integers). I just don't know how to specify a standard precision.

Localize provenance of current established connections

Sample command to obtain a list of geographic localization for established connections, extracted from netstat. Need geoiplookup command ( part of geoip package under CentOS)

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Commands using sed (1,319)

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