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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Detect illegal access to kernel space, potentially useful for Meltdown detection

Based on capsule8 agent examples, not rigorously tested

find all non-html files

Do command when logged in from certain ips using ssh

Place in ~/.bashrc If you login to a ssh server from different ips, sometimes you want to do something specific for each. e.g., quickly go into screen -x session from a phone, but not your desktop.

Make backups recurse through directories

How to estimate the storage size of all files not named *.[extension] on the current directory

With this sentence we can estimate the storage size of all files not named *.jpg on the current directory. The syntax is based on Linux, for Unix compliance use: find ./* -prune ! -name '*.jpg' -ls |awk '{TOTAL+=$7} END {print int(TOTAL/(1024^2))"MB"}' We can change the jpg extension for whatever extension what we need

Scan a gz file for non-printable characters and display each line number and line that contains them.

Scans the file once to build a list of line numbers that contain non-printable characters Scans the file again, passing those line numbers to sed as two commands to print the line number and the line itself. Also passes the output through a tr to replace the characters with a ?

pip install into current directory without virtualenv

For subsequent commands in the prefixed path: $ PYTHONPATH=$PWD/lib/python*/site-packages ./bin/pip --version

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" }

Show DeviceMapper names for LVM Volumes (to disambiguate iostat logs, etc)

Emits the device names which will be printed by iostat for an LVM volume; doesn't show the names for the underlying devices when snapshots are being used (the -cow and -real devices in /dev/mapper)

Instant mirror from your laptop + webcam

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Commands using sed (1,319)

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