All commands (14,187)
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use fsnotify on linux, fswatch on OS-X
0fswatch -o my-script.sh | xargs -n1 ./my-script.sh -
0ls *(m-1)
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another possibility
0echo sortmeplease|sed 's/./&\n/g'|sort|tr -d '\n' -
uuencode the file to appear as an attachment
0cat filename | uuencode filename | mail -s "Email subject" user@example.com -
0sleep 4; F="$(tempfile -s '.xwd')"; xwd > "$F" ; gimp "$F"
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Use bc for decimals...
0echo $(echo 'scale=2; ' '100 * ' $(eix --only-names -I | wc -l) / $(eix --only-names | wc -l) | bc -l)% -
Clock will appear in the top-right corner
0watch -n 1 : -
0convert /home/user/file.jpg -resize 800x533 -strip -quality 80 -interlace line /home/user/web_file.jpg
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You don't need to use "*", it will fail if the working directory has too many fails due parameter extension, you can simply pass the working directory using ".".
0grep -r <searchterm> . -
All files in the directory will be renamed replacing every space in the filename by "_" (underline) and converting upper case characters to lower case characters. e.g. Foo Bar.txt --> foo_bar.txt
0for file in * ; do mv "$file" `echo "$file" | tr ' ' '_' | tr '[A-Z]' '[a-z]'`; done -
more variety
0ifconfig | grep "inet" | tail -1 | awk '{print $2}' -
Get the current cpu % usage on your system. Show Sample Output
0top -n2 -d 0.5 | grep ^Cpu | sed 's/[[:alpha:]%]*//g' | awk 'NR == 2 {printf("%.2f\n",100-$5)}' -
0vim $(grep [REGULAR_EXPRESSION] -R * | cut -d":" -f1 | uniq)
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cut log from line 50 to line 88
0cat -n install.log | head -88 | tac | head -n $(( 88 - 50 )) | tac -
I use this with alias: alias lsl="ls -1F | grep @ | sed 's/@//' | column"
0$ ls -1F | grep @ | sed 's/@//' | column -
Just want to show the "+" usage in the grep command. And if using egrep, thing would be a little bit easier: grep -n "arrname\[[[:digit:]]+\]" filename Show Sample Output
0grep -n "arrname\[[[:digit:]]\+\]" filename -
0cat File.txt | grep -io 'http://www.acme.com/a/files/.*.pdf'| uniq
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0du --max-depth=1 -h --apparent-size | sort -rh
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This is helpful when approaching a new codebase and wondering where the bulk of the code is located Show Sample Output
0find . -name '*.c*' -o -name '*.h' -exec wc -l {} \; | sort -n | tail -
Useful in scripts to compare known malicious IP addresses with what you are actually blocking. Show Sample Output
0ufw status | sort | uniq | grep -E -o "([0-9]{1,3}[\.]){3}[0-9]{1,3}" -
Find music types on your current location and will play them randomly with mpv/mplayer.
0find . -type f \( -name "*.mp3" -o -name "*.ogg" \) | mpv --shuffle --audio-display=no --playlist - -
Parses tektronic given csv files for both channel 1 and channel 2 and joins them together. Can be easily used by gnuplot after that.
0awk 'BEGIN {FS=","} {loc = $4, val=$5; getline < "f0001ch1.csv"; print loc,val,$5}' f0001ch2.csv > data -
Update a Mandriva Linux system with any pending updates. This command needs to be run with root privilege. Using the "--force" option answers "yes" to any interactive prompts thus allowing the updates to be left unattended to completion. NB if there is an update for glibc and/or a new kernel then the system would need to be rebooted for these to take effect. A prerequisite for running "urpmi --auto-update" is to have correctly defined urpmi media sources (which can be done by visiting http://easyurpmi.zarb.org/). If there are no new updates the the message "Packages are up to date" is shown. Show Sample Output
0urpmi --auto-update --force # apply all pending updates (Mandriva Linux) -
Can be used in a working copy to output the URL (extracted from svn info), or as part of another function, as $(svnurl some/path). Saves a lot of time in my SVN workflow.
0function svnurl() { svn info $1 | egrep '^URL: (.*)' | sed s/URL\:\ //; } -
More straightforward. Show Sample Output
0perl -ne '$w = length if (length > $w); END {print "$w\n"}' *.cpp - ‹ First < 444 445 446 447 448 > Last ›
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