Commands using xargs (769)
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Remove all empty directories below the current directory. If directories become empty as the results of this, remove those too.
-2find . -type d | tac | xargs rmdir 2> /dev/null -
-2ps auxwww | grep outofcontrolprocess | awk '{print $2}' | xargs kill -9
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-2find . -name '*.txt' | grep -v '\.lzma$' | xargs -n 1 lzma -f -v -3
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xargs avoids having to remember the "{} \;" (although definitely a useful thing to know. Unfortunately I always forget it). xargs version runs 2x faster on my test fwiw. edit: fixed to handle spaces in filenames correctly.
-2find . -name "*.php" -print0 | xargs -0 grep -i "search phrase" -
-2find . -name "*noticia*" -name "*jhtm*" -name "*.tpl" -exec grep -li "id=\"col-direita\"" '{}' \; | xargs -n1 mate
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I used this to mass install a lot of perl stuff. Threw it together because I was feeling *especially* lazy. The 'perl' and the 'module' can be replaced with whatever you like.
-2apt-cache search perl | grep module | awk '{print $1;}' | xargs sudo apt-get install -y -
-2locate munin | xargs rm -r
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I have some problems with gnome panel which does not load completely leaving me without the actual GUI. This commands helps to kill the gnome-panel process then it should be relaunch automatically.
-2pgrep -lf gnome-panel | awk '{if ($2=="gnome-panel") print $1}' | xargs kill -9 -
Calc the rough time from Twitter. Now with leading Zeroes. Show Sample Output
-2printf "%02d:%02d\n" $(curl -s "http://search.twitter.com/search?from=zurvollenstunde&rpp=1" | grep -E '(Es ist jetzt|ago)' | sed 's/<[^>]*>//g;s/[^[:digit:]]//g' | xargs ) -
This command lists all the directories in SEARCHPATH by size, displaying their size in a human readable format. Show Sample Output
-2SEARCHPATH=/var/; find $SEARCHPATH -type d -print0 | xargs -0 du -s 2> /dev/null | sort -nr | sed 's|^.*'$SEARCHPATH'|'$SEARCHPATH'|' | xargs du -sh 2> /dev/null -
This is a more concise answer to http://blog.commandlinekungfu.com/2011/09/episode-158-old-switcheroo.html in my opinion.
-2find . -type f | xargs grep -n "Old Text" | tee filesChanged.txt | sed 's/:.*$//' | xargs sed -i 's/Old Text/New Text/g -
be careful where you execute this from do a 'sudo ls' beforehand to prime sudo to not ask for your password
-2find . -user root | xargs sudo chown me:me -
defunct processes (zombies) usually have to be killed by killing their parent processes. this command retrieves such zombies and their immediate parents and kills all of the matching processes.
-2ps afx | grep defunct -B 1 | grep -Eo "[0-9]{3,}" | xargs kill -9 -
When downloading files on a Mac, Apple adds the x-attribute: com.apple.quarantine. Often, this makes it so you can't even run a ./configure. This command gets rid of the quarantine for all files in the current directory.
-2find . | xargs xattr -d com.apple.quarantine -
-2cat urls.txt | xargs -n1 curl -O --max-time 10 --retry 3 --retry-delay 1
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executed on SLES 11.2
-2ls -ltr |grep 'May 12'|awk '{print $9;}'|xargs rm -v -
Using xargs is usually much quicker as it does not have to execute chmod for every file
-2find . -type f -print0 | xargs -0 chmod a-x -
-2find / -xdev \( -perm -4000 \) -type f -print0 | xargs -0 ls -l
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-2find /path/ -type f -exec grep -l '<string of text>' {} \; | xargs sed -i -e 's%<string of text>%<new text string>%g'
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First use find to find all the images that end with jpg or JPG in the current dir and all its children. Then pipe that to xargs. The -I{} makes it so spaces in filenames don't matter. The 1024">" makes it so it takes any image greater in dimension than 1024 and resizes them to 1024 width, but keeping aspect ratio on height. Then it sets the image quality to 40. Piping it through xargs means you avoid the file count limit, and you could run this on your entire file system if you wanted.
-2find . -name '*.jpg' -o -name '*.JPG' | xargs -I{} mogrify -resize 1024">" -quality 40 {} -
-2ls | grep ".txt$" | xargs -i WHATEVER_COMMAND {}
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-2grep -i s2enc /etc/vcac/server.xml | sed -e 's/.* password=\"\([^\"]*\)\".*/\1/' | xargs -n 1 vcac-config prop-util -d --p 2>/dev/null; echo
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Broken in two parts, first get the number of cores with cat /proc/cpuinfo |grep proc|wc -l and create a integer sequence with that number (xargs seq), then have GNU parallel loop that many times over the given command. Cheers! Show Sample Output
-2time cat /proc/cpuinfo |grep proc|wc -l|xargs seq|parallel -N 0 echo "scale=4000\; a\(1\)\*4" '|' bc -l -
Replace $CMDLINE_FILENAME with the name of the cmdline file you copied from /proc/pid, and $COMMAND with the command to execute with those arguments.
-2tail -zn+2 $CMDLINE_FILENAME | xargs -0 $COMMAND -
-3find . -name "*.EXT" | xargs grep -n "TODO" | wc -l
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