Commands using sed sorted by votes

Commands using sed (1,319)

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Generat a Random MAC address

minor improvement, added newline at no cost. Show Sample Output
This is sample output - yours may be different.
```
33:05:DA:B0:DE:80
```
0

hexdump -n6 -e '/1 "%02X:"' /dev/random|sed 's/:$/\n/'

colavi · 2015-02-05 13:14:07 8
Copy files with a given string to a new set of files with a different string.

If you have a series of existing files in a directory that you would like to copy to a new series, and then make a series of changes to those new files, this will speed up the process of copying the files. You can later iterate through a loop and use sed -i -e 's/old_string/new-string' new_string_files.* to replace all the values you need to in the newly copied files. Show Sample Output
This is sample output - yours may be different.
```
None unless you add -v to cp to see the files copied.
```
0

for f in `find /path -name "*string*"`; do newfn=`echo "$f" | sed s/string/new_string/`; cp $f $newfn; done

Dairenn · 2015-02-11 20:00:50 8
Get your Speed Dial urls

For all users of https://addons.mozilla.org/de/firefox/addon/speed-dial/
This is sample output - yours may be different.
0

sed -n '/url/s#^.*url=$.*://.*$#\1#p' ~/.mozilla/firefox/*.[dD]efault/SDBackups/*.speeddial | sort | uniq

return13 · 2015-02-17 20:56:28 10
Show first IPv4 address for an interface without CIDR mask

Given a network interface (eth0 in this example), find its ip address, without CIDR netmask. Show Sample Output
This is sample output - yours may be different.
```
localhost core # ip addr show dev eth0 | grep -E '\binet\b' | sed 's|.*inet $[^/]*$/.*|\1|' | head -n 1
192.168.128.197
```
0

ip addr show dev eth0 | grep -E '\binet\b' | sed 's|.*inet $[^/]*$/.*|\1|' | head -n 1

marksheahan · 2015-02-26 19:07:10 8
Get magnet link from URL
This is sample output - yours may be different.
0

curl -s http://host.net/url.html | grep magnet | sed -r 's/.*(magnet:[^"]*).*/\1/g'

alikhalil · 2015-04-05 08:43:01 10
Get all interfaces name

Show Sample Output
This is sample output - yours may be different.
```
lo
eno1
wlp0s29u1u5
```
0

ip addr | sed '/^[0-9]/!d;s/: <.*$//;s/^[0-9]: //'

bonaff · 2015-04-12 12:58:56 9
Show the number of processes by user in descending order
This is sample output - yours may be different.
0

ps -auxh | sed -r "s/\s+/ /g" | cut -d ' ' -f 1 | sort | uniq -c | sort -gr

lavidaportland · 2015-05-24 16:57:50 10
drop first column of output by piping to this

This is the easiest and shortest way :-)
This is sample output - yours may be different.
0

sed 1d

rantanplan · 2015-05-27 09:25:01 9

How to capture ICAP headers with tcpdump

Human readable representation of the headers of an ICAP request, using tcpdump Show Sample Output

idodekov · 2015-05-29 12:58:27 9

Calculate Duration Of Files In Directory

When you want to know the duration of all your mp3 files in the current working directory this command will tell you based on exif data. Since it relies on exif data it can be used against other files like movies, ogg vorbis etc. also. Useful when you want to know how long it will take to listen to an album or series of lectures. Show Sample Output
This is sample output - yours may be different.
```
3:15:29
```
0

exiftool * | grep '^Duration' | sed 's/^.*[[:space:]]$[0-9]*:[0-9]*:[0-9]*$.*$/\1/g' | awk -F':' '{ H+=$1;M+=$2;S+=$3 } END { printf "%d:%d:%d\n", int(H+int(M/60)),int(M+S/60)%60,S%60 }'

keyboardsage · 2015-06-17 06:20:47 9
Display a formated comma seperated spreadsheet .csv with letters and numbers for easy viewing and to check formula entry..

In addition one can evaluate the formulas in the venerable spreadsheet command sc, with an additional command. function csvev () { cat $1 | sed -e '1i,,,,,,,' |sed -e 's/=sum/@sum/g' -e 's/=SUM/@SUM/g' | psc -k -d, | sed -e 's/\"@SUM(/@SUM(/' -e 's/)"/)/' | sed '/@SUM/ { s/rightstring/let/; }' | sed -e '/= "=/s/rightstring/let/' -e '/= "=/s/"//g' | sed 's/= =/= /g' | sc ; } I will post this command separately as well. Show Sample Output
This is sample output - yours may be different.
```
0	a     b     c              d        e        f        g        h            j       k    l  m  n  o  p
     1	Name  Date  email          Amount1  Amount2  Amount3  Amount4  Total
     2	Erik  2015  sf@none.net    10       20       30       10       =SUM(D2:G2)
     3	joe   2014  joe@none.net   5        10       15       10       =SUM(D3:G3)
     4	jill  2015  jill@none.net  10       25       30       10       =SUM(D4:G4)
     5	                                                               =SUM(H2:H4)  =G2+G3  =H2
```
0

function sheet () { cat "$1" | sed '1s/^/a,b,c,d,e,f,g,h,j,k,l,m,n,o,p\n/' | column -s , -tn | nl -v 0 ; }

eakinc · 2015-07-13 03:14:35 9
Evaluate simple formulas in a .csv spreadsheet by converting and piping to the venerable sc.

Requires psc, sed, sc, and cat. Working with csv spreadsheets with formulas in them to evaluate the formulas using sc. View the formulas in a numbered and lettered formated in command line. function sheet () { cat "$1" | sed '1s/^/a,b,c,d,e,f,g,h,j,k,l,m,n,o,p\n/' | column -s , -tn | nl -v 0 ; }
This is sample output - yours may be different.
0

cat FILE.csv |sed -e '1i,,,,,' |sed -e 's/=sum/@sum/g' -e 's/=SUM/@SUM/g' |psc -k -d, |sed -e 's/\"@SUM(/@SUM(/' -e 's/)"/)/' -e '/@SUM/ { s/rightstring/let/; }' -e '/= "=/s/rightstring/let/' -e '/= "=/s/"//g' -e 's/= =/= /g' |sc

eakinc · 2015-07-13 04:11:31 10
extract ip address from ifconfig using

merge ifconfig grep awk sed you need to change the interface of ifconfig where ip is up Show Sample Output
This is sample output - yours may be different.
```
                 <--------=   IP    =-------->
```
0

ifconfig wlan0 | grep "inet addr:" | awk '{print $2}' | sed -e 's/.*:/\n\n\n/g' | sed 's/$[0-9]\{1,3\}\.$\{3\}[0-9]\{1,3\}/\t\t\t<--------= & =-------->\n\n\n\n\n/g'

lb · 2015-07-13 05:37:31 9
Display specific line in a text file

use this command to quickly display specific line. Show Sample Output
This is sample output - yours may be different.
```
seq 100 | sed "55q;d"
55
```
0

sed "<line no>q;d"

s_prapat · 2015-07-17 14:10:51 11
Export all domains in bind format from AWS Route53
This is sample output - yours may be different.
0

eval `cli53 list |grep Name | sed "s/\.$//g" | awk '{printf("echo %s; cli53 export %s > %s;\n", $2, $2, $2);}'`

cfb · 2015-07-21 14:16:30 10
Change all xxx.png files' name to xxx@2x.png for iOS
This is sample output - yours may be different.
0

ls -1 | sed 's/$.*$\.$.*$/\"&\" \"\1@2x\.\2\"/' | xargs -n2 mv

dieface · 2015-08-05 20:24:16 9
Set Apache 2.4 log level on RHEL6

Uses sed to quickly set log level in httpd.conf. For Apache 2.4 installed via Software Collections on RHEL6 systems.
This is sample output - yours may be different.
0

loglevel() { sudo sed -Ei.bak "/LogLevel\s/s/alert|crit|debug|emerg|error|info|notice|warn/${1}/" /opt/rh/httpd24/root/etc/httpd/conf/httpd.conf }

jblackwood · 2015-08-13 22:14:40 9
Printout a list of field numbers from a CSV file with headers as first line.

Take the header line from a comma-delimited CSV file and enumerate the fields. . First sed replaces all commas with newlines s/,/\n/g Then sed quits (q) after the first line. Finally, nl numbers all the lines Show Sample Output
This is sample output - yours may be different.
```
$ cat file.csv 
First Name,Family Name,Occupation
Albert,Einstein,Physicist
William,Shakespeare,Writer

$ sed 's/,/\n/g;q' file.csv | nl
     1	First Name
     2	Family Name
     3	Occupation
```
0

sed 's/,/\n/g;q' file.csv | nl

flatcap · 2015-08-26 11:38:56 13
Outputs unique error messages from the apache log and count, sorted by frequency

Outputs unique error messages from the apache log, sorted by frequency. Tested on log format: [Wed Aug 26 00:00:00 2015] [error] [client xx.xx.xx.xx] Error message here Show Sample Output
This is sample output - yours may be different.
```
63 PHP PHP Warning: json_encode(): Invalid UTF-8 sequence in argument
10 Warning: Warning: preg_match() expects parameter 2 to be string, array given
7 PHP PHP Warning: Invalid argument supplied for foreach() in ...
5 PHP PHP Warning: implode(): Invalid arguments passed in ...
1 PHP PHP Parse error: syntax error, unexpected ',' in ...
```
0

cat /var/log/apache2/error.log | awk '{out=$9;for(i=9;i<=NF;i++){out=out" "$i}; print out}' | sed s/,\ referer.*// | sort | uniq -c | sort -nr

cmattoon · 2015-08-26 14:14:12 10
List all the currently loaded old kernel packages, that is other than the active one
This is sample output - yours may be different.
0

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/$.*$-$[^0-9]\+$/\1/")"'/d;s/^[^ ]* [^ ]* $[^ ]*$.*/\1/;/[0-9]/!d'

jeffskinnerbox · 2015-09-19 00:39:48 12
Check if the LHC has destroyed the world

Use -q as first argument (as described in `man curl`) to ignore curlrc to ensure the output is always the same regardless of user's configuration. Show Sample Output
This is sample output - yours may be different.
```
NO.
```
0

curl -q -s http://www.hasthelhcdestroyedtheearth.com/ | sed -En '/span/s/.*>(.*)<.*/\1/p'

Tatsh · 2015-09-23 23:26:30 12
pretty print environment variable PATH

Echo $PATH isn't very easy to read. Show Sample Output
This is sample output - yours may be different.
```
/bin
/home/wbg/anaconda/bin
/home/wbg/bin
/sbin
/usr/bin
/usr/local/bin
/usr/local/sbin
/usr/sbin
```
0

echo $PATH | sed 's/:/\n/g' | sort | uniq

wbg · 2015-09-30 05:55:51 13
Generate File and Checksum with pseudo-random Content and Size in Bash

Create a file with random binary content. Required pv, units packages. It use openssl to encrypt zeros using aes-256 and time stamp as password to generate a pseudo-random file. Show Sample Output
This is sample output - yours may be different.
```
e.g. size=1G will generate 2 file:
1G
1G.md5

You can check file with
md5sum -c 1G.md5
```
0

s=1G bs=16K; count=`units ${s}iB ${bs}iB -1 -t --out="%.f"`; openssl enc -aes-256-ctr -pass pass:`date +%s%N` -nosalt < /dev/zero 2>/dev/null | dd iflag=fullblock bs=$bs count=$count | tee $s | pv -s $s | md5sum | sed -e "s/-/$s/" > ${s}.md5

jcppkkk · 2015-09-30 06:27:39 10
Take screenshot of Android device using adb and save to filesystem
This is sample output - yours may be different.
0

adb shell screencap -p | sed 's/\r$//' > FILENAME.PNG

alikhalil · 2015-10-07 09:42:36 15
search APT's cache for a regex and let it display name and short description of matches

I personally like it very much and have wrapped it into a function, named "apt-propos" ;), also you can use --names-only option for a sort-of "apt-whatis"
This is sample output - yours may be different.
0

apt-cache search byo | sed "s/^$[[:alnum:]\.-]*$ - /\1=%%%=- /" | column -s '=%%%=' -t

VoidDroid · 2015-10-18 10:55:34 11
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use SHIFT + ALT to toggle between two keyboard layouts

change the last two-character abbreviation to any layout abbreviation you want. This command will only run in the current session, add to your ~/.bashrc to make this permanent.

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Set executable permissions on a file under Subversion

This avoids the "chmod +x filename" after performing a check out or export. From http://snipplr.com/view/5277/set-executable-permissions-on-a-file-under-subversion/

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"

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Getting ESP and EIP addresses from running processes

'ps' let you specify the format that you want to see on the output.

Show all LISTENing and open server connections, with port number and process name/pid

remove lines which are longer than 255

zsh suffix to inform you about long command ending

make, find and a lot of other programs can take a lot of time. And can do not. Supppose you write a long, complicated command and wonder if it will be done in 3 seconds or 20 minutes. Just add "R" (without quotes) suffix to it and you can do other things: zsh will inform you when you can see the results. You can replace zenity with other X Window dialogs program.

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

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Commands using sed (1,319)

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