Commands using xargs sorted by votes

Commands using xargs (769)

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umount --rbind mount with submounts

Original: https://bugzilla.redhat.com/show_bug.cgi?id=194342
This is sample output - yours may be different.
1

cat /proc/mounts | awk '{print $2}' | grep "^$MOUNTPOINT" | sort -r | xargs umount

boni · 2011-05-17 05:54:42 4
Get all files of particular type (say, PDF) listed on some wegpage (say, example.com)

This example command fetches 'example.com' webpage and then fetches+saves all PDF files listed (linked to) on that webpage. [*Note: of course there are no PDFs on example.com. This is just an example]
This is sample output - yours may be different.
1

curl -s http://example.com | grep -o -P "<a.*href.*>" | grep -o "http.*.pdf" | xargs -d"\n" -n1 wget -c

b_t · 2011-06-09 14:42:46 5
Fetch all GPG keys that are currently missing in your keyring

For instance, if people have signed your key, this will fetch the signers' keys.
This is sample output - yours may be different.
1

gpg --list-sigs | sed -rn '/User ID not found/s/^sig.+([a-FA-F0-9]{8}).*/\1/p' | xargs -i_ gpg --keyserver-options no-auto-key-retrieve --recv-keys _

lingo · 2011-07-22 16:31:25 5
Create a tar of directory structure only

The original suggestion did not work for me, when operating on folders located on an external mount (ie other than the root device) in Ubuntu. A variation using xargs does the trick.
This is sample output - yours may be different.
1

find . -type d|xargs tar rf ~/dirstructure.tar --no-recursion

gdevarajan · 2011-08-03 16:21:10 4
Find all videos under current directory using MIME a.k.a not using extension

Videos are found using their MIME type. Thus no need to for an extension for the video file. This is a efficent version of "jnash" cmd (4086). Thanks for jnash. This cmd will only show video files while his cmd show files having "video" anywhere in path. Show Sample Output
This is sample output - yours may be different.
```
$ find ./ -type f -print0 | xargs -0 file -iNf - | grep ": video/" | cut -d: -f1

./.v.a-desk/atomic_city.wmv
./.mozilla/firefox/yhszbu0k.default/Cache/1/1A/9DD36d01
./.mozilla/firefox/yhszbu0k.default/Cache/7/A6/8BFE0d01
./.mozilla/firefox/yhszbu0k.default/Cache/6/63/FAE2Cd01
./.mozilla/firefox/yhszbu0k.default/Cache/9/D5/E16E0d01
$
```
1

allVideos() { find ./ -type f -print0 | xargs -0 file -iNf - | grep ": video/" | cut -d: -f1; }

totti · 2011-08-19 11:58:59 3
archive all files containing local changes (svn)

This works more reliable for me ("cut -c 8-" had one more space, so it did not work)
This is sample output - yours may be different.
1

svn st -q | cut -c 2- | tr -d ' ' | xargs tar -czvf ../backup.tgz

titus · 2011-08-31 10:30:29 3
Create a false directory structure for testing your commands

This will make a false directory with the same file names as whatever directory you choose. This is wise to use when testing scripts that alter contents, filenames, or move files. I wrote this after an OOPS I made when renaming a directory of JPGs, PNGs, PSDs that were mixed. I recommend this as I lost over 2000 vacation pictures and some graphics I designed for software and web sites. :( NOTE: This only creates name copies, that data itself is not copied.
This is sample output - yours may be different.
1

for each in /usr/bin/*; do echo $each | sed 's/\/usr\/bin\///' | xargs touch; done

evil · 2011-10-13 19:14:34 5
recursive search and replace old with new string, inside files

Using -Z with grep and -0 with xargs handles file names with spaces and special characters.
This is sample output - yours may be different.
1

grep -rlZ oldstring . | xargs -0 sed -i -e 's/oldstring/newstring/'

thoughtcriminal · 2011-10-18 19:14:02 4
delete file name space

delete file name space the rename is rename perl version
This is sample output - yours may be different.
1

find . -type f -print0 | xargs -0 rename 's/\ //g'

lishuai860113 · 2011-10-25 21:46:36 5
Replace duplicate files by hardlinks

This variation can handle file paths containing spaces.
This is sample output - yours may be different.
1

fdupes -R -1 path | while read -r line; do (echo $line | xargs -n 1 | (first="true"; firstfile=""; while read file; do if [ "$first" == "true" ]; then first="false"; firstfile=$file; else ln --force "$firstfile" "$file"; fi; done)); done

eclewis · 2012-02-01 15:08:18 3
Archive all files that have not been modified in the last days

Finally, we can make the file "unchangeable" sudo chattr +i
This is sample output - yours may be different.
1

find /protocollo/paflow -type f -mtime +5 | xargs tar -cvf /var/dump-protocollo/`date '+%d%m%Y'_archive.tar`

0disse0 · 2012-02-03 16:24:08 3
geoip information

Show external IP and geolocation information. Primary feature is the use of tee to echo IP _and_ send to geoiplookup command...Use IP as input for as many commands as you want with more >( [command] ) Thanks to http://www.commandlinefu.com/commands/view/6334/ Requires MaxMind DB and geoiplookup tool. Sample output has IP obfuscated on first line, lines 2-4 from having MaxMind Country && MaxMind City DBs installed Show Sample Output
This is sample output - yours may be different.
```
***.***.***.***
GeoIP Country Edition: US, United States
GeoIP City Edition, Rev 1: US, WA, Seattle, 98194, 47.595100, -122.332603, 819, 206
GeoIP City Edition, Rev 0: US, WA, Seattle, 98194, 47.595100, -122.332603
```
1

curl -s ifconfig.me|tee >(xargs geoiplookup)

MeanderingCode · 2012-02-09 20:30:26 4
List files in directory tree with newest last
This is sample output - yours may be different.
1

find <directory> -type f -printf "%T@\t%p\n"|sort -n|cut -f2|xargs ls -lrt

rik · 2012-03-02 12:51:06 3
Commands on svn stat
This is sample output - yours may be different.
1

svn stat | grep M | cut -d " " -f8 | xargs svn revert

pranavkn · 2012-03-24 00:16:40 3
Recursively find top 20 largest files (> 1MB) sort human readable format

from my bashrc ;)
This is sample output - yours may be different.
1

find . -mount -type f -printf "%k %p\n" | sort -rg | cut -d \ -f 2- | xargs -I {} du -sh {} | less

bashrc · 2012-03-30 07:37:52 3
Open the current project on Github by typing gh

Written for Mac OSX. When you are working in a project and want to open it on Github.com, just type "gh" and your default browser will open with the repo you are in. Works for submodules, and repo's that you don't own. You'll need to copy / paste this command into a gh.sh file, then create an alias in your bash or zsh profile to the gh.sh script. Detailed instructions here if you still need help: http://gist.github.com/1917716
This is sample output - yours may be different.
1

git remote -v | grep fetch | sed 's/$.*github.com$[:|/]$.*$.git (fetch)/\2/' | awk {'print "https://github.com/" $1'} | xargs open

brockangelo · 2012-04-15 20:48:46 20
List the most recent dates in reverse-chronological order
This is sample output - yours may be different.
1

seq 1 5 | xargs -I"#" date --date="today -# days" +'%Y-%m-%d'

happycat · 2012-05-22 14:22:04 12
Kill all processes belonging to a user
This is sample output - yours may be different.
1

ps -fu $USER | awk {'print $2'} | xargs kill [-9]

carlossiscomtec · 2012-07-06 21:17:01 3
Find inside files two different patterns in the same line and for matched files show number of matched lines

The option -print0 for find and -0 for grep help prevent issue with weird characters or spaces in filenames. Furthermore with xargs there is no limited number of arguments that find can throw.
This is sample output - yours may be different.
1

find . -name '*' -type f -print0 | xargs -0 grep -n pattern1 | grep pattern2

bugmenot · 2012-07-29 00:40:06 6
archlinux:Delete packages from pacman cache that are older than 7 days

Sometimes my /var/cache/pacman/pkg directory gets quite big in size. If that happens I run this command to remove old package files. Packages that we're upgraded in last N days are kept in case you are forced to downgrade a specific package. The command is obviously Arch Linux related.
This is sample output - yours may be different.
1

find /var/cache/pacman/pkg -not -mtime -7 | sudo xargs rm

brejktru · 2012-09-20 12:36:44 4

Show the UUID of a filesystem or partition

Show the UUID-based alternate device names of ZEVO-related partitions on Darwin/OS X. Adapted from the lines by dbrady at http://zevo.getgreenbytes.com/forum/viewtopic.php?p=700#p700 and following the disk device naming scheme at http://zevo.getgreenbytes.com/wiki/pmwiki.php?n=Site.DiskDeviceNames Show Sample Output

ls /dev/disk* | xargs -n 1 -t sudo zdb -l | grep GPTE_

grahamperrin · 2012-10-06 20:19:45 5

Get top N files in X directory

You can simply run "largest", and list the top 10 files/directories in ./, or you can pass two parameters, the first being the directory, the 2nd being the limit of files to display. Best off putting this in your bashrc or bash_profile file Show Sample Output
This is sample output - yours may be different.
```
$ largest
Getting top 10 largest files in ./
711M	./Havoc.2005.UNRATED.DVDRip.XviD-PuRE
719M	./Lincoln 2012
799M	./[ www.UsaBit.com ] - Here Comes the Boom (2012) BluRay 720p 800MB Ganool.mkv
950M	./Watchmen
1.2G	./Sucker Punch
1.4G	./The Buried Life
1.4G	./Stop-Loss
2.5G	./Django Unchained 2012 DVDSCR X264 AAC-P2P
 14G	./Justified Season 2 Complete 720p
 15G	./Justified Season 1 Completed 720p
```
1

largest() { dir=${1:-"./"}; count=${2:-"10"}; echo "Getting top $count largest files in $dir"; du -sx "$dir/"* | sort -nk 1 | tail -n $count | cut -f2 | xargs -I file du -shx file; }

jhyland87 · 2013-01-21 09:45:21 7
Git Global search and replace

Find all the occurrences in the git repo of 'foo' and replace with 'bar'
This is sample output - yours may be different.
1

git grep -l foo | xargs sed -i 's/foo/bar/g'

Schleis · 2013-01-29 16:02:21 4
easily strace all your apache processes

This version also attaches to new processes forked by the parent apache process. That way you can trace all current and *future* apache processes.
This is sample output - yours may be different.
1

ps auxw | grep sbin/apache | awk '{print"-p " $2}' | xargs strace -f

msealand · 2013-02-19 19:14:57 5
Get version of loaded kernel module

Returns the version of the kernel module specified as "MODULENAME", when available. Show Sample Output
This is sample output - yours may be different.
```
lsmod | grep -io e1000 | xargs modinfo | grep -iw version

version:        7.3.21-k8-NAPI
```
1

lsmod | grep -io MODULENAME| xargs modinfo | grep -iw version

adriano · 2013-03-18 07:52:14 14
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geoip information

A function that takes a domain name as an argument

Test network speed without wasting disk

The above command will send 4GB of data from one host to the next over the network, without consuming any unnecessary disk on either the client nor the host. This is a quick and dirty way to benchmark network speed without wasting any time or disk space. Of course, change the byte size and count as necessary. This command also doesn't rely on any extra 3rd party utilities, as dd, ssh, cat, /dev/zero and /dev/null are installed on all major Unix-like operating systems.

Change every instance of OLD to NEW in file FILE

Very quick way to change a word in a file. I use it all the time to change variable names in my PHP scripts (sed -i 's/$oldvar/$newvar/g' index.php)

Display laptop battery information

find files in a date range

Find files in a specific date range - in this case, the first half of last year. -newermt = modification time of the file is more recent than this date GNU find allows any date specfication that GNU date would accept, e.g. $ find . -type f -newermt "3 years ago" ! -newermt "2 years ago" or $ find . -type f -newermt "last monday"

Copy your ssh public key to a server from a machine that doesn't have ssh-copy-id

This one is a bit more robust -- the remote machine may not have an .ssh directory, and it may not have an authorized_keys file, but if it does already, and you want to replace your ssh public key for some reason, this will work in that case as well, without duplicating the entry.

Watch the disk fill up

While copying a large file that may take up a good chunk of your hard drive, start the copy and run this command concurrently. It will print out the disk information every second. It's pretty handy when you have a large copy with nothing to monitor the progress.

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"

Display two calendar months side by side

Displays last month, current month, and next month side by side.

most changed files in domains by rdiff-backup output

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Commands using xargs (769)

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