Commands using xargs sorted by votes

Commands using xargs (769)

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Recursively change permissions on directories, leave files alone.
This is sample output - yours may be different.
0

find /var/www/ -type f -print0 | xargs -0 chmod 644

FiloSottile · 2013-03-28 11:14:20 5
Get the number of open sockets for a process
This is sample output - yours may be different.
0

ps aux | grep [process] | awk '{print $2}' | xargs -I % ls /proc/%/fd | wc -l

auser · 2013-04-03 09:40:03 7
Yardstick static analysis report sorted by which JavaScript files have the highest ratio of comments to code.

The number on the far right is ratio of comments to code, expressed as a percentage. For the rest of the Yardstick documentation see https://github.com/calmh/yardstick/blob/master/README.md#reported-metrics Show Sample Output
This is sample output - yours may be different.
```
map.js                                   4   0   13   4     31
  anon@0                                 1   0    3   1     33
conf.js                                  0   0    3   1     33
not_found.js                             1   0    3   1     33
circle_droppable.js                      7   0   38  17     45
  anon@50                                1   0    4   3     75
circle_default.js                        0   0    3   4    133
routes.js                                0   0    3   9    300
```
0

find . -name *js -type f | xargs yardstick | sort -k6 -n

noah · 2013-04-06 00:19:46 8
find ip address in all files in /etc directory

find ip address in all files in /etc directory. can be used to find any string in any directory really
This is sample output - yours may be different.
0

find /etc -type f -print0 | xargs -r0 grep --color '192.168.0.1'

jakezp · 2013-04-30 15:03:20 9
Prints total line count contribution per user for an SVN repository

This one has a better performance, as it is a one pass count with awk. For this script it might not matter, but for others it is a good optiomization.
This is sample output - yours may be different.
0

svn ls -R | egrep -v -e "\/$" | xargs svn blame | awk '{count[$2]++}END{for(j in count) print count[j] "\t" j}' | sort -rn

kurzum · 2013-05-03 01:45:12 6
Exclude dumping of specific tables with same prefix from a single database

Required : information_schema ** Only replace the "DB-NAME" and "PREFIX" with your DB-name and wildcard prefix match. ** Also replace with your own username and password for mysql server. This command uses the information_schema to wildcard match tables that we donot need from a database and than pipes the remaining tables out through "xargs" command to the mysqldump utility which than dumps those remaining tables into a sql dump file. Show Sample Output
This is sample output - yours may be different.
```
Outputs a sql dump file.
```
0

mysql -uuser -ppass -e 'use information_schema; SELECT table_name FROM tables where table_schema="DB-NAME" and table_name NOT LIKE "PREFIX";' | grep -v table_name | xargs mysqldump DB-NAME -uuser -ppass > dump.sql

moosak · 2013-06-17 13:44:15 55
Resize images with mogrify with lots of options

The "find $stuff -print0 | xargs -0 $command" pattern causes both find and xargs to use null-delineated paths, greatly reducing the probability of either hiccuping on even the weirdest of file/path names. It's also not strictly necessary to add the {} at the end of the xargs command line, as it'll put the files there automatically. Mind, in most environments, you could use find's "-exec" option to bypass xargs entirely: find . -name '*.jpg' -o -name '*.JPG' -exec mogrify -resize 1024">" -quality 40 {} + will use xargs-like "make sure the command line isn't too long" logic to run the mogrify command as few times as necessary (to run once per file, use a ';' instead of a '+' - just be sure to escape it properly).
This is sample output - yours may be different.
0

find . -name '*.jpg' -o -name '*.JPG' -print0 | xargs -0 mogrify -resize 1024">" -quality 40

minnmass · 2013-06-20 16:09:41 8
Recursively remove all empty directories

It starts in the current working directory. It removes the empty directory and its ancestors (unless the ancestor contains other elements than the empty directory itself). It will print a failure message for every directory that isn't empty. This command handles correctly directory names containing single or double quotes, spaces or newlines. If you do not want only to remove all the ancestors, just use: find . -empty -type d -print0 | xargs -0 rmdir
This is sample output - yours may be different.
0

find . -empty -type d -print0 | xargs -0 rmdir -p

rafar · 2013-07-01 02:44:57 6
Recursive remove files by mask
This is sample output - yours may be different.
0

find . -name ".DS_Store" -print0 | xargs -0 rm -rf

alexanv · 2013-07-08 07:24:01 7
Replicate a directory structure from a 'basedir' in a remote server.

The directories are created in the local host with the same structure below of a remote base directory, including the 'basedir' in case that it does not exists. You must replace user and remotehost (or IP address) with your proper values ssh will ask for the password of the user in remotehost, unless you had included properly your hostname in the remote .ssh/known_hosts file. Show Sample Output
This is sample output - yours may be different.
```
Password:
mkdir -p /var/opt/example
mkdir -p /var/opt/example/backups
mkdir -p /var/opt/example/logs
mkdir -p /var/opt/example/sent
mkdir -p /var/opt/example/unsent
```
0

ssh user@remotehost "find basedir -type d" | xargs -I {} -t mkdir -p {}

neomefistox · 2013-07-17 07:14:32 12
md5sum for files with bad characters

Recursively list all files in the current directory & get their md5sum, even if the filename has bad characters. Show Sample Output
This is sample output - yours may be different.
```
157c3ea9f83eec0e581925c721d6c3e8  ./file1 with bad chars & stuff.txt
1513ce87dbacdb6bde706d93e81202c0  ./file3 and  still more -bad characters*^%$.txt
59d0d19fc45ca69230d858f60a5557f8  ./file2 with more "bad characters" (and 'stuff').txt
```
0

find ./ -type f | sed "s:[\ \',\"]:\\\&:g" | xargs md5sum

crazedsanity · 2013-07-17 18:54:14 7
md5sum for files with bad characters
This is sample output - yours may be different.
0

find ./ -type f -print0 | xargs -0 md5sum

d24m · 2013-07-18 07:18:54 6
Recursive find and replace in h an cpp files
This is sample output - yours may be different.
0

find . -name "*.h" -o -name "*.cpp" | xargs sed -i 's/addVertexes/addVertices/g'

egeoffray · 2013-08-07 07:31:45 9
Download all items from a list of URLs copied to the clipboard on OS X

On Linux substitute pbpaste with `xsel --clipboard --output` or `xclip -selection clipboard -o` (untested)
This is sample output - yours may be different.
0

pbpaste | xargs wget

loopkid · 2013-08-11 23:12:10 6
Remove semaphores

Solves these pesky errors you see in the Apache log: [Fri Jun 28 17:51:00 2013] [emerg] (28)No space left on device: Couldn't create accept lock (/monsoon/opt/apache2/logs/accept.lock.356) (5) Naturally, can be used to get rid of other semaphores. Note: change the apache user in accordance to your ENV. Show Sample Output
This is sample output - yours may be different.
```
It works quietly, unless you have no sem IDs attached to this user [in this case, apache]
```
0

ipcs -s | grep apache | awk ' { print $2 } ' | xargs ipcrm sem

kernel01 · 2013-08-12 16:29:32 195
Export ms access mdb to mysql sql

schema & tables To export into another backends style, just change backend to one of: access, sybase, oracle, postgres, mysql and sqlite Show Sample Output
This is sample output - yours may be different.
```
CREATE TABLE `Blah` (...);
INSERT INTO `Blah` (`id`, `name`) VALUES (1, 'Wow');
```
0

db=example.mdb; backend=mysql; mdb-schema "$db" $backend | grep -v 'COMMENT ON COLUMN' && mdb-tables -1 "$db" | xargs -I {} mdb-export -I $backend "$db" {}

garex · 2013-08-25 18:39:27 8
Remove all message queues owned by user foo
This is sample output - yours may be different.
0

ipcs -q | grep foo | awk '{print $2}' | xargs -I ipcid ipcrm -q ipcid

eko · 2013-08-29 15:08:13 14
IBM AIX: Verify a sha256sum listing with openssl

This command is used to verify a sha256sum-formatted file hash list on IBM AIX or any other UNIX-like OS that has openssl but doesn't have sha256sum by default. Steps: 1: Save to the filesystem a script that: A: Receives as arguments the two parts of one line of a sha256sum listing B: Feeds a file into openssl on SHA256 standard input hash calculation mode, and saves the result C: Compares the calculated hash against the one received as argument D: Outputs the result in a sha256sum-like format 2: Make the script runnable 3: Feed the sha256sum listing to xargs, running the aforementioned script and passing 2 arguments at a time Show Sample Output
This is sample output - yours may be different.
```
cognos-EARs/ServletGateway-1021-SDK-customized.ear: OK
cognos-EARs/ServletGateway-1021-SDK-customizedandfixed.ear: OK
cognos-EARs/ServletGateway-1021-base.ear: OK
cognos-EARs/p2pd-1021-SDK-customized.ear: OK
cognos-EARs/p2pd-1021-base.ear: OK
```
0

echo '#! /usr/bin/ksh\ncat $2 | openssl dgst -sha256 | read hashish; if [[ $hashish = $1 ]]; then echo $2: OK; else echo $2: FAILED; fi;' > shacheck; chmod +x shacheck; cat hashishes.sha256 | xargs -n 2 ./shacheck;

RAKK · 2013-09-18 21:51:20 8

This script can be used to download enclosed files from a RSS feed. For example, it can be used to download mp3 files from a podcasts RSS feed. Show Sample Output

wget -q -O- http://example-podcast-feed.com/rss | grep -o "<enclosure[ -~][^>]*" | grep -o "http://[ -~][^\"]*" | xargs wget -c

talha131 · 2013-09-24 12:38:08 22

Localize a Public IP on a specific interface

My first command :) I made this command to log public addresses of a virtual interface who connects random VPN servers around the world. Show Sample Output
This is sample output - yours may be different.
```
date/hour/ipaddress/ip location
```
0

(date "+%d-%m-%Y %H:%M:%S";curl -s --interface lo:1 ifconfig.me| xargs -t geoiplookup 2>&1)|sed -e 's/geoiplookup/IP:/g' -e 's/GeoIP Country Edition/Country/g'|tr -s "\n" " "|sed 'a\ '

guerito · 2013-10-07 15:28:55 6
Compile all .less files to .css
This is sample output - yours may be different.
0

find *.less | xargs -I {} lessc {} {}.css && ls *.less.css | sed -e 'p;s/less.css/css/' | xargs -n2 mv

ckrotcov · 2013-10-21 23:53:31 7
Generate a Random (unicast) MAC address

I did not come up with this one myself, but found this somewhere else several months ago. Show Sample Output
This is sample output - yours may be different.
```
E0:C9:B3:FE:E9:65
```
0

openssl rand -hex 1 | tr '[:lower:]' '[:upper:]' | xargs echo "obase=2;ibase=16;" | bc | cut -c1-6 | sed 's/$/00/' | xargs echo "obase=16;ibase=2;" | bc | sed "s/$/:$(openssl rand -hex 5 | sed 's/$..$/\1:/g; s/.$//' | tr '[:lower:]' '[:upper:]')/"

4fd · 2013-10-22 08:40:46 7
Find Duplicate Files (based on size first, then MD5 hash)

* Find all file sizes and file names from the current directory down (replace "." with a target directory as needed). * sort the file sizes in numeric order * List only the duplicated file sizes * drop the file sizes so there are simply a list of files (retain order) * calculate md5sums on all of the files * replace the first instance of two spaces (md5sum output) with a \0 * drop the unique md5sums so only duplicate files remain listed * Use AWK to aggregate identical files on one line. * Remove the blank line from the beginning (This was done more efficiently by putting another "IF" into the AWK command, but then the whole line exceeded the 255 char limit). >>>> Each output line contains the md5sum and then all of the files that have that identical md5sum. All fields are \0 delimited. All records are \n delimited.
This is sample output - yours may be different.
0

find . -type f -not -empty -printf "%-25s%p\n"|sort -n|uniq -D -w25|cut -b26-|xargs -d"\n" -n1 md5sum|sed "s/ /\x0/"|uniq -D -w32|awk -F"\0" 'BEGIN{l="";}{if(l!=$1||l==""){printf "\n%s\0",$1}printf "\0%s",$2;l=$1}END{printf "\n"}'|sed "/^$/d"

alafrosty · 2013-10-22 13:34:19 7
Delete keys from Redis by matching a pattern

Show Sample Output
This is sample output - yours may be different.
```
redis-cli keys pattern\* | xargs redis-cli del
(integer) 3
```
0

redis-cli keys pattern\* | xargs redis-cli del

pyrux · 2013-10-29 04:59:38 10
Delete Redis keys by mask

If you want to do this in the some one db, use redis-cli -n5 KEYS "user*" | xargs redis-cli -n5 DEL
This is sample output - yours may be different.
0

redis-cli KEYS "user*" | xargs redis-cli DEL

vp_arth · 2013-10-31 04:10:29 7
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Print just line 4 from a textfile

connect via ssh using mac address

Connect to a machine running ssh using mac address by using the "arp" command

Convert (almost) any video file into webm format for online html5 streaming

Recording the desktop and an application audio source for webcast

You will have to use the sound preferences (record) to choose the audio source and set it to internal.

Create a mirror of a local folder, on a remote server

Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

Add a line from 1 file after every line of another (shuffle files together)

After every line in targetfile (empty lines included) insert in a line from addfile. "Save" results to savefile. Addfile should be longer than targetfile since this doesn't loop back to the top of addfile. /^/R addfile -- says for every line that matches "has a start of line" output a line from the file addfile. > savefile (optional) -- redirect output to savefile file.

View all date formats, Quick Reference Help Alias

If you have used bash for any scripting, you've used the date command alot. It's perfect for using as a way to create filename's dynamically within aliases,functions, and commands like below.. This is actually an update to my first alias, since a few commenters (below) had good observations on what was wrong with my first command. # creating a date-based ssh-key for askapache.github.com $ ssh-keygen -f ~/.ssh/`date +git-$USER@$HOSTNAME-%m-%d-%g` -C 'webmaster@askapache.com' $ # /home/gpl/.ssh/git-gplnet@askapache.github.com-04-22-10 # create a tar+gzip backup of the current directory $ tar -czf $(date +$HOME/.backups/%m-%d-%g-%R-`sed -u 's/\//#/g'

Count the number of queries to a MySQL server

find sparse files

Prints the path/filename and sparseness of any sparse files (files that use less actual space than their total size because the filesystem treats large blocks of 00 bytes efficiently).

Unpack .tgz File On Linux

With -a you don't care about file type (bz2, gzip, etc.)

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Commands using xargs (769)

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