Commands using xargs (769)
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Will open strace on all apache process, on systems using sbin/apache (debian) or sbin/httpd (redhat), and will follow threads newly created.
3ps auxw | grep -E 'sbin/(apache|httpd)' | awk '{print"-p " $2}' | xargs strace -F -
3elinks -dump https://pastebin.com/archive|grep https|cut -c 7-|sed 's/com/com\/raw/g'|awk 'length($0)>32 && length($0)<35'|grep -v 'messages\|settings\|languages\|archive\|facebook\|scraping'|xargs wget
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This is a standard procedure for me, whenever I set up a new Raspberry Pi system. Because the default user is "pi", I quickly replace it with my own (e.g. "kostis"), but I have to substitute that user to all of pi's groups first, before deleting the default account. xargs helps a lot with that in a single line, while avoiding boring "for" loops. For everything trickier, there's always "parallel" :)
3groups pi | xargs -n 1 | tail -n +4 | xargs -n 1 sudo adduser kostis -
3GITUSER=$(whoami); curl "https://api.github.com/users/${GITUSER}/starred?per_page=1000" | grep -o 'git@[^"]*' | xargs -L1 git clone
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3dpkg-query --show --showformat='${Package}\t${Status}\n' | tac | awk '/installed$/ {print $1}' | xargs apt-cache rdepends --installed | tac | awk '{ if (/^ /) ++deps; else if (!/:$/) { if (!deps) print; deps = 0 } }'
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3find . -maxdepth 1 -name '*.zip' -print0 | xargs -0 -I {} -P 25 unzip {}
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2find . -name "*.py" | xargs wc -l
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2svn st | grep "^\?" | awk "{print \$2}" | xargs rm -rf
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Great for finding which jar some pesky class is hiding in! Show Sample Output
2find . -name "*.jar" | xargs -tn1 jar tvf | grep --color "SearchTerm" -
this will find text in the directory you specify and give you line where it appears.
2find /directory/to/search/ -type f -print0 | xargs -0 grep "findtext" -
These days, most software distributed in tar files will just contain a directory at the top level, but some tar files don't have this and can leave you with a mess of files in the current folder if you blindly execute
tar zxvf something.tar.gzThis command can help you clean up after such a mistake. However, note that this has the potential to do bad things if someone has been *really* nasty with filenames.2tar ztf tar-lacking-subdirectory.tar.gz | xargs rm -
2find /path/to/files -type f -mtime +7 | grep -v \.gz | xargs gzip
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2find . -type f -name "*.java" -print0 | xargs -0 -n 1 svn blame | sed -n 's/^[^a-z]*\([a-z]*\).*$/\1/p' | sort | uniq -c | sort -n
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2echo COMMAND | xargs -ixxx ps -C xxx -o pid= | xargs -ixxx ls -l /proc/xxx/cwd
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2svn status | grep "^\?" | awk '{print $2}' | xargs svn add
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Use the find command to match certain files and summarise their total size in KBytes. Show Sample Output
2find /path/to/my/files/ -type f -name "*txt*" | xargs du -k | awk 'BEGIN{x=0}{x=x+$1}END{print x}' -
Change ~/tmp to the destination directory, such as your mounted media. Change -n20 to whatever number of files to copy. It should quit when media is full. I use this to put my most recently downloaded podcasts onto my phone.
2find . -name \*.mp3 -printf "%C+ %h/%f\n" | sort -r | head -n20 | awk '{print "\""$2"\""}' | xargs -I {} cp {} ~/tmp -
Nice reading in the morning on the way to work, but sadly the .tar.gz for the whole issue 66 is not on phrack's website yet. So use wget to download.
2mkdir phrack66; (cd phrack66; for n in {1..17} ; do echo "http://www.phrack.org/issues.html?issue=66&id=$n&mode=txt" ; done | xargs wget) -
2svn status | grep '!' | sed 's/!/ /' | xargs svn del --force
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Inspired by http://www.commandlinefu.com/commands/view/2573/remove-all-files-previously-extracted-from-a-tar.gz-file. .... yet for zip files
2unzip -lt foo.zip | grep testing | awk '{print $2}' | xargs rm -r -
get diskusage of files (in this case logfiles in /var/log) modified during the last n days:
sudo find /var/log/ -mtime -n -type f | xargs du -chn -> last modified n*24 hours ago Numeric arguments can be specified as +n for greater than n, -n for less than n, n for exactly n. => so 7*24 hours (about 7 days) is -7sudo find /var/log/ -mtime -7 -type f | xargs du -ch | tail -n1Show Sample Output2sudo find /var/log/ -mtime -7 -type f | xargs du -ch | tail -n1 -
Based on the MrMerry one, just add some visuals and sort directory and files
2find . -maxdepth 1 -type d|xargs du -a --max-depth=0|sort -rn|cut -d/ -f2|sed '1d'|while read i;do echo "$(du -h --max-depth=0 "$i")/";done;find . -maxdepth 1 -type f|xargs du -a|sort -rn|cut -d/ -f2|sed '$d'|while read i;do du -h "$i";done -
2find . -type f -print0 | xargs -0 grep -i <pattern>
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I took java to make the find command simpler and to state that it works for any language supported by cpp. cpp is the C/C++ preprocessor (interprets macros, removes comments, inserts includes, resolves trigraphs). The -fpreprocessor option tells cpp to assume the input has already been preprocessed so it will only replace comment lines with blank lines. The -L 1 option tells xargs to launch one process for each line, indeed cpp can only process one file at the time...
2find . -name '*.java' | xargs -L 1 cpp -fpreprocessed | grep . | wc -l -
Run this as root, it will be helpful to quickly get information about the loaded kernel modules. Show Sample Output
2lsmod | cut -d' ' -f1 | xargs modinfo | egrep '^file|^desc|^dep' | sed -e'/^dep/s/$/\n/g' - ‹ First < 4 5 6 7 8 > Last ›
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