Commands using xargs (769)
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Its possible to user a simple regex to extract de username from the finger command. The final echo its optional, just for remove the initial space Show Sample Output
0finger $(whoami) | egrep -o 'Name: [a-zA-Z0-9 ]{1,}' | cut -d ':' -f 2 | xargs echo -
Google Cloud SDK comes with a package manager `gcloud components` but it needs a bit of `sed` to work. Modify the "^| Not" bit to change the package selection. (The gcloud --format option is currently broken) Show Sample Output
0gcloud components list | grep "^| Not" | sed "s/|\(.*\)|\(.*\)|\(.*\)|/\2/" | xargs echo gcloud components update -
0find . -name *.png | xargs optipng -nc -nb -o7 -full
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0ls *.png | cut -d . -f 1 | xargs -L1 -i convert -strip -interlace Plane -quality 80 {}.png {}.jpg
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This will add a perl POD stub above each method in all modules found recursively in your current directory. The stub will look like: =head2 method_name =cut sub method_name { ...
0find . -type file -name '*.pm' | xargs perl -p -i -e 'BEGIN{undef $/;} s/([;}])\s*\nsub (\w+)/$1\n\n=head2 $2\n\n=cut\n\nsub $2/g' -
0git ls-files --modified -z | xargs -0 git checkout HEAD
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Find all books on my systems and move them into folder. The -0 switches are to handle spaces etc. in the filenames. Why would you need this? Locate uses an index, so it's super quick, and xargs is more elegant than a for loop.
0locate -0 -i *barthes* | xargs -0 mv -t ~/'Library/Books/Barthes, Roland' -
This approach deals with special characters such as apostrophe and whitespace in the file/directory names. tr '\n' '\0' converts the newline delimiting into NUL delimitering which xargs -0 expects. It works on systems which do not yet support xargs -d or sort -h, and includes files in addition to directories. Show Sample Output
0du -s * | sort -n | cut -f2 | tr '\n' '\0' | xargs -0 -I {} du -sh "{}" -
This will look in all binary and library files in package and then search the system for this library and then print the required package that has this file, this depends on /etc/prt-get.conf prtdir order. finddeps is a prt-utils script for http://crux.nu/ CRUX Linux. If you use docker you can try this out with "docker run -i -t crux" Show Sample Output
0finddeps firefox-pgo | cut -d' ' -f1 | xargs | sed -e 's/glibc//g' -e 's/gcc//g' -e 's/binutils//g' -e 's/ \+ / /g' -
count all the lines of code in specific directory recursively in this case only *.php can be *.*
0find . -name '*.php' | xargs wc -l -
Find and delete files over 15 days Show Sample Output
0find ./ -type f -name *.file -mtime +15 | xargs rm -f -
Assumes you are in the branch you want to run the check on. Sub 'develop' for whatever branch you commonly submit PRs to. Show Sample Output
0git rev-parse develop | xargs git diff --name-only | grep -E '^(app|lib|spec).*\.rb' | xargs rubocop -f simple -
Useful for big systems with lots of cards. (Update: does not work with USB disks)
0udevadm info -q all -n /dev/sdc | grep ID_PATH | cut -d'-' -f 2 | xargs -n 1 lspci -s -
Just 253 chars of pure UNIX magic, with curl. I created this contrived bash one-liner while building a command-line bash game : www.rubegoldbash.com. Show Sample Output
0curl -s ip.appspot.com | xargs -n 1 curl -s "freegeoip.net/csv/$1" | cut -d ',' -f '9 10' | sed 's/,/\&lon=/g' | xargs -n 1 echo "http://api.openweathermap.org/data/2.5/weather?mode=html&lat=$1" | sed 's/ //g' | xargs -n 1 curl -s $1 | lynx -stdin -dump -
Finds the date of the first commit in a git repository branch Show Sample Output
0git rev-list --all|tail -n1|xargs git show|grep -v diff|head -n1|cut -f1-3 -d' ' -
0ls -lt | grep ^- | awk 'NR>=N {print $9}' | xargs rm -rf -i
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0find . -size +10M -type f -print0 | xargs -0 ls -Sshl1
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0find . -mtime +7 -type f -print0 | xargs -0 ls -Sshl1
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0find filename -print0 | xargs -0 rm
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0ps aux | grep salt | awk '{ print $2}' | xargs kill
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Uses "locate" instead of "find", "sort -u" instead of "sort | uniq" and it's case insensitive. Show Sample Output
0locate -i /pattern/ | xargs -n1 dirname | sort -u -
0pgrep -f /usr/sbin/httpd | awk '{print"-p " $1}' | xargs strace
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Removes directories which are less than 1028KB total. This works for systems where blank directories are 4KB. If a directory contains 1 MB (1024KB) or less, it will remove the directory using a path relative to the directory where the command was initially executed (safer than some other options I found). Adjust the 1028 value for your needs. It would be helpful to test the results before proceeding with the removal. Simply run all but the last two commands to see a list of what will be removed:
du | awk '{if($1<1028)print;}' | cut -d $'\t' -f 2-If you're unsure what size a blank folder is, test it like this:mkdir test; du test; rmdir test0du | awk '{if($1<1028)print;}' | cut -d $'\t' -f 2- | tr "\n" "\0" | xargs -0 rm -rf -
0find . -name '*.js' | xargs du -bc -h | sort -k1,1 -h
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0docker ps -a | grep Exit | awk -F " " '{ print $1 }' | xargs docker rm {}
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