Commands using xargs sorted by votes

Commands using xargs (769)

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Halt all running vagrants (virtualboxes)
This is sample output - yours may be different.
0

vboxmanage list runningvms | cut -d \" -f 2 | xargs -I % vboxmanage controlvm % poweroff

magoon · 2013-11-05 16:58:03 7
Search ruby-files with non-ascii character, but without encoding directive

Show Sample Output
This is sample output - yours may be different.
```
app/models/foo.rb
```
0

grep -l --include '*.rb' --include '*.rake' '^[^#]*[^a-zA-Z0-9[:punct:][:space:]]' -R . | xargs -L1 awk '!/encoding/ && NR < 2 { print FILENAME }'

numbata · 2013-11-13 21:41:42 6
Remove all older kernels then the current running kernel for Ubuntu/Debian base system
This is sample output - yours may be different.
0

export KEEP_KERNEL=2; dpkg -l 'linux-image*' | awk '/^ii/ { print $2 }' | grep "[0-9]" | awk 'BEGIN{i=1}{print i++, $0}' | grep `uname -r` -B99 | sort -r | tail -n+$(($KEEP_KERNEL+2)) | awk '{print $2}'| xargs apt-get -y purge

The_IceMan_Blog · 2013-11-23 15:35:42 7
find css or js files, minifiy with in-path-yuicompressor, gzip output, and save into <static-file>.gz
This is sample output - yours may be different.
0

find -regextype posix-egrep -regex '.*\.(css|js)$' | xargs -I{} sh -c "echo '{}' && yuicompressor '{}' | gzip -c > '{}.gz'"

frankowp · 2013-12-14 20:27:47 8
Count music files in each directory

This lists the number of ogg/mp3/wav/flac files in each subdirectory of the current directory. The output can be sorted by piping it into "sort -n". Show Sample Output
This is sample output - yours may be different.
```
9955 .
82 ./16 Horsepower
17 ./17 Hippies
11 ./Abney Park
44 ./AC DC
10 ./Accept
1 ./Acceptance
9 ./Adiemus
6 ./Bran? Ketern?
10 ./Budapest Gypsy Symphony Orchestra
20 ./Budapester Klezmer Band
35 ./Buena Vista Social Club
12 ./Burlap To Cashmere
```
0

find . -type d -maxdepth 1 -print0 | xargs -0 -I{} sh -c 'find "{}" -type f | grep "ogg\|mp3\|wav\|flac$" | wc -l | tr -d "\n"; echo " {}"'

dbrgn · 2013-12-22 13:40:29 11
Open current wallpaper on nautilus file-manager (change file-manager name for others)

Getting current wallpaper on nautilus file-managers
This is sample output - yours may be different.
0

gsettings get org.gnome.desktop.background picture-uri | xargs nautilus

mikeit · 2014-01-19 20:36:36 6
Remove files unpacked by unzip
This is sample output - yours may be different.
0

zipinfo -1 aap.zip | xargs -d '\n' rm

JIghtuse · 2014-01-22 07:00:25 10
get md5sum for all files, skipping svn directories

recurse through all files, get the message hash, flip the output as filename, hash value Show Sample Output
This is sample output - yours may be different.
```
/appl/hdcdw/cntl/CDINadSrc.fld  2b90c02cf391872e330001d2bdf28315
/appl/hdcdw/cntl/CDIUcsSearsSrc.fld     9ca2dd125a0785fe8cd4c2b9d67109dc
/appl/hdcdw/cntl/CDI_StatsAcxiom.fload  0d31df4ebf16aa99e9bd00ad85c3e813
/appl/hdcdw/cntl/DailyETLMailList.dat   6fb4e9c1ceb50024a31bc9969eb3ed80
```
0

find $1 -not -iwholename "*.svn*" -type f | xargs md5sum | awk '{print $2 "\t" $1}'

dronamk · 2014-02-12 19:04:08 5
bzip2 all files in a directory older than 1 week (nicely)
This is sample output - yours may be different.
0

find /logdir -type f -mtime +7 -print0 | xargs -0 -n 1 nice -n 20 bzip2 -9

rootninja · 2014-02-12 19:35:09 6
Get block device mapped parent PCI controller

Maps block devices to the PCIe nodes
This is sample output - yours may be different.
0

udevadm info -q all -n /dev/sdb | grep ID_PATH | cut -d'-' -f 2 | xargs -n 1 lspci -s

bp · 2014-02-18 06:23:39 7
Search and replace multiple files with substitution

Does a search and replace across multiple files with a subgroup replacement.
This is sample output - yours may be different.
0

find . -name "*.txt" | xargs -n 1 perl -pi -w -e "s/text([0-9])/other\$1/g;"

kennethjor · 2014-02-28 06:38:38 6
look some php code by some keywords

Another way to view some code by keyword and basic regular expression
This is sample output - yours may be different.
0

locate *\\.php|xargs grep --color=always -i -5 "namespace\s.*\W"|less

unixmonkey14859 · 2014-02-28 13:52:15 7

Show all symlinks

shows you the symlinks in the current directory, recursively, but without following them Show Sample Output

find ./ -type l -print0 | xargs -0 ls -plah

jmorganwalker · 2014-03-20 20:36:39 7

Get MAC ID linux command line

Many tasks need mac id check. above command exactly do the same Show Sample Output
This is sample output - yours may be different.
```
001D292B2668
```
0

ifconfig |grep HWaddr |cut -d ' ' -f 1,11 |grep eth0 |cut -d ' ' -f 2|xargs | awk -F':' '{ print $1$2$3$4$5$6 }'

simplewall · 2014-04-25 18:43:47 13
Generate SHA1 hash for each file in a list
This is sample output - yours may be different.
0

find . -regex ".*$avi\|mp4\|wmv$$" -print0 | xargs -0 sha1sum

hochmeister · 2014-05-07 05:45:12 8
Open (in vim) all modified files in a git repository

Works even with spaces in filenames. As an alias in .gitconfig: [alias] editchanged = "!git status --porcelain | sed -ne 's/^ M //p' | tr '\\n' '\\0' | tr -d '\"' | xargs -0 vim"
This is sample output - yours may be different.
0

git status --porcelain | sed -ne 's/^ M //p' | tr '\n' '\0' | tr -d '"' | xargs -0 vim

uschrisf · 2014-05-08 08:36:27 7

find svn uncommitted files and list their properties

Find all files in SVN workspace directories which are uncommitted. List them and find their properties Show Sample Output

for d in `ls -d *`; do svn status $d | awk '{print $2}'; done | xargs ls -l {} \;

dronamk · 2014-05-27 19:07:45 19

extracting the email-server's ip-address.
This is sample output - yours may be different.
0

dig MX example.com +short | cut -d' ' -f2 | sed '1q;d' | xargs dig +short

x1b2j · 2014-06-03 11:11:39 7
Find directories in pwd, get disk usage, sort results
This is sample output - yours may be different.
0

find . -type d -d 1 -print0 | xargs -0 du -sm | sort -nr

hochmeister · 2014-06-05 22:00:45 8
Get the total length of all videos in the current dir in H:m:s

Use case insensitive regex to match files ending in popular video format extensions and calculate their total time. (traverses all files recursively starting from the current directory) Show Sample Output
This is sample output - yours may be different.
```
203:11:32
```
0

find -type f -iregex '.*\.$mkv\|mp4\|wmv\|flv\|webm\|mov\|dat\|flv$' -print0 | xargs -0 mplayer -vo dummy -ao dummy -identify 2>/dev/null | perl -nle '/ID_LENGTH=([0-9\.]+)/ && ($t +=$1) && printf "%02d:%02d:%02d\n",$t/3600,$t/60%60,$t%60' | tail -n 1

powerinside · 2014-06-07 15:50:41 6
Append html-extension to all files in a directory structure that contains html-code.
This is sample output - yours may be different.
0

find . |xargs grep '<html\|<body\|<table' |sed '/~/d;s/:.*//' |sed 's/.*/mv & &.html/' |uniq >run.sh; sh run.sh

mobluse · 2014-07-09 19:20:40 13
Check CRL expiration time

Downloads a CRL file, determines the expiration time, and checks when it will expire Show Sample Output
This is sample output - yours may be different.
```
OK
```
0

[ `curl 'http://crl.godaddy.com/gds5-16.crl' 2>/dev/null | openssl crl -inform DER -noout -nextupdate | awk -F= '{print $2}' | xargs -I{} date -d {} +%s` -gt `date -d '8 hours' +%s` ] && echo "OK" || echo "Expires soon"

hufman · 2014-08-07 17:18:38 8
Docker - delete all non-running container
This is sample output - yours may be different.
0

docker ps -a | grep 'Exit' | awk '{print $1}' | xargs docker rm

j0hnb · 2014-09-19 15:23:42 8
Docker - delete unused images
This is sample output - yours may be different.
0

docker images | grep '' | awk '{print $3}' | xargs docker rmi

j0hnb · 2014-09-19 15:24:12 25
rename files (in this case pdfs) numerically in date order

Caution: distructive overwrite of filenames Useful for concatenating pdfs in date order using pdftk
This is sample output - yours may be different.
0

find . -name "*.pdf" -print0 | xargs -r0 stat -c %y\ %n | sort|awk '{print $4}'|gawk 'BEGIN{ a=1 }{ printf "mv %s %04d.pdf\n", $0, a++ }' | bash

Randy_Legault · 2014-09-23 06:40:45 9
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Compare two directories

Output of this command is the difference of recursive file lists in two directories (very quick!). To view differences in content of files too, use the command submitted by mariusbutuc (very slow!): $ diff -rq path_to_dir1 path_to_dir2

trace the system calls made by a process (and its children)

strace can be invaluable in trying to figure out what the heck some misbehaving program is doing. There are number of useful flags to limit and control its output, and to attach to already running programs. (See also 'ltrace'.)

Get info about remote host ports and OS detection

Where < target > may be a single IP, a hostname or a subnet -sS TCP SYN scanning (also known as half-open, or stealth scanning) -P0 option allows you to switch off ICMP pings. -sV option enables version detection -O flag attempt to identify the remote operating system Other option: -A option enables both OS fingerprinting and version detection -v use -v twice for more verbosity. $ nmap -sS -P0 -A -v < target >

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Get first Git commit hash

git log --format=%H | tail -1 doesn't work anymore

Find processes utilizing high memory in human readable format

Finding high memory usage report in human readable format.

Awk one-liner that sorts a css file by selector

Update your OpenDNS network ip

Intended for dynamic ip OpenDNS users, this command will update your OpenDNS network IP. For getting your IP, you can use one of the many one-liners here on commandlinefu. Example: I use this in a script which is run by kppp after it has successfully connected to my ISP: --- #!/bin/bash IP="`curl -s http://checkip.dyndns.org/ | grep -o '[[:digit:].]\+'`" PW="hex-obfuscated-pw-here" if [ "$IP" == "" ] ; then echo 'Not online.' ; exit 1 else wget -q --user=topsecret --password="`echo $PW | xxd -ps -r`" 'https://updates.opendns.com/nic/update?hostname=myhostname&myip='"$IP" -O - /etc/init.d/ntp-client restart & fi --- PS: DynDNS should use a similar method, if you know the URL, please post a comment. (Something with members.dyndns.org, if I recall correctly)

use jq to validate and pretty-print json output

the `jq` tool can also be used do validate json files and pretty print output `cat file.json | jq` available on several platforms, including newer debian-based systems via `#sudo apt install jq`, mac via `brew install jq`, and from source https://stedolan.github.io/jq/download/

setup a tunnel from destination machine port 80 to localhost 2001, via a second (hub) machine.

this is handy when the hubmachine is the only machine that can connect to the destination machine (allowed on ip by firewall) and you want to access it from your laptop.

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Commands using xargs (769)

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