Commands by depesz (36)
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2perl -le 'print$_%3?$_%5?$_:"Buzz":$_%5?"Fizz":"FizzBuzz"for 1..100'
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Much better alternatives - grep-alikes using perl regexps. With more options, and nicer outputs.
1ack; pcregrep -
+ at the end means that many filenames will be passed to every chmod call, thus making it faster. And find own {} makes sure that it will work with spaces and other characters in filenames.
7find public_html/ -type d -exec chmod 755 {} + -
2lsb_release -ri
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-2find . -depth \( -path '*/*.java.orig' -o -path '*/*.java.orig/*' \) -delete
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-1echo $(( $( date +%s ) - $( stat -c %Y * | sort -nr | head -n 1 ) ))
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Benefit is that it doesn't make you keep the terminal open.
-2echo "shutdown -h now" | sudo at now + 4 hours -
Sometimes you might need to have two copies of data that is in tar. You might unpack, and then copy, but if IO is slow, you might lower it by automatically writing it twice (or more times)
-1mkdir copy{1,2}; gzip -dc file.tar.gz | tee >( tar x -C copy1/ ) | tar x -C copy2/ -
Alternatively: export MyVAR=84; awk '{ print ENVIRON["MyVAR"] }'
3MyVAR=85 awk '{ print ENVIRON["MyVAR"] }' -
-4ack hoge .
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-4grep -r hoge .
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1find . -type d -name .svn -prune -o -type f -print0 | xargs -r0 ...
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-1ps -C apache o pid= | sed 's/^/-p /' | xargs strace
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-2dpkg --get-selections | awk '$2=="install" {print $1}' | sort
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Will work with filenames with spaces inside. Will not break in case of someone making directory that matches *.pm. And sorts from largest. Where largest is file size, not line count.
0find . -type f -name '*.pm' -printf '%6s %p\n' | sort -nr | head -n 50 -
First version was "ps uw -p $$", but current "ps -o comm= -p $$" just gives shell name
0ps -o comm= -p $$ -
1perl -le '$,=".";print map int rand 256,1..4'
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0perl -le '$,=".";print map int rand 256,1..4'
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0perl -le 'print time()'
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-1find -type f -exec du -sh {} + | sort -rh | head
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Output made so that it will match initial suggestion for this task. Personally, I think that output of du -h is more readable.
0find . -type f -size +20000k -print0 | xargs -0 du -h | awk -F"\t" '{printf "%s : %s\n", $2, $1}' -
F[0] filters using first word. $F[1] - 2nd, and so on.3perl -ane 'print unless $x{$F[0]}++' infile > outfile -
0shopt -s globstar; rm -rfv **/.svn
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perl-less way
3(netstat -atn | awk '{printf "%s\n%s\n", $4, $4}' | grep -oE '[0-9]*$'; seq 32768 61000) | sort -n | uniq -u | head -n 1 -
perl-based version
0netstat -atn | perl -ane 'if ( $F[3] =~ /(\d+)$/ ) { $x{$1}=1 } END{ print( (grep {!$x{$_}} 32768..61000)[0] . "\n" )}' - 1 2 >
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