All commands (14,187)
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ps command gives the possibility to display information with custom formatting with the -o options followed by the format specifier list. Show Sample Output
4ps ax -o "%p %U %u %x %c %n" -
Redirects the contents of your clipboard through a pipe, to a remote machine via SSH.
3pbpaste | ssh user@hostname 'cat > ~/my_new_file.txt' -
Using 7z to create archives is OK, but when you use tar, you preserve all file-specific information such as ownership, perms, etc. If that's important to you, this is a better way to do it.
8tar cf - /path/to/data | 7z a -si archivename.tar.7z -
4dvd+rw-format -force /dev/dvd1
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greps using only ascii, skipping the overhead of matching UTF chars. Some stats: $ export LANG=C; time grep -c Quit /var/log/mysqld.log 7432 real 0m0.191s user 0m0.112s sys 0m0.079s $ export LANG=en_US.UTF-8; time grep -c Quit /var/log/mysqld.log 7432 real 0m13.462s user 0m9.485s sys 0m3.977s Try strace-ing grep with and without LANG=C
0export LANG=C; grep string longBigFile.log -
I've used technicalpickles command a lot, but this one handles whitespaces in filenames. I'm sure you want to create an alias for it :) Show Sample Output
7git ls-files -z --deleted | xargs -0 git rm -
4find . -type f ! -name "*html"
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Just a handy way to get all the unique links from inside all the html files inside a directory. Can be handy on scripts etc. Show Sample Output
4find . -name '*.html' -print0| xargs -0 -L1 cat |sed "s/[\"\<\>' \t\(\);]/\n/g" |grep "http://" |sort -u -
Handy when you need to create a list of files to be updated when subversion is not available on the remote host. You can take this tar file, and upload and extract it where you need it. Replace M and N with the revisions specific to yours. Make sure you do this from an updated (svn up) working directory.
2tar cvfz changes.tar.gz --exclude-vcs `svn diff -rM:N --summarize . | grep . | awk '{print $2}' | grep -E -v '^\.$'` -
2grep <pattern> -R . --exclude-dir='.svn'
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This one would be much faster, as it's only one executed command.
1fmiss() { grep -RL "$*" * } -
awk can clear the screen while displaying output. This is a handy way of seeing how many lines a tail -f has hit or see how many files find has found. On solaris, you may have to use 'nawk' and your machine needs 'tput' Show Sample Output
0cat /dev/urandom|awk 'BEGIN{"tput cuu1" | getline CursorUp; "tput clear" | getline Clear; printf Clear}{num+=1;printf CursorUp; print num}' -
Simple but useful little command to unzip all files in a directory.
-5cd /example/directory && unzip \*.zip -
Save the script as: sort_file Usage: sort_file < sort_me.csv > out_file.csv This script was originally posted by Admiral Beotch in LinuxQuestions.org on the Linux-Software forum. I modified this script to make it more portable. Show Sample Output
0infile=$1 for i in $(cat $infile) do echo $i | tr "," "\n" | sort -n | tr "\n" "," | sed "s/,$//" echo done -
- for .xsession use - Advantages of running a urxvt daemon include faster creation time for terminal windows and a lot of saved memory. You can start new terminals as childs of urxvtd by typing urxvtc. Another advantage is, that background jobs are always owned by the urxvtd and will survive as long the daemon is running.
4urxvtd -q -o -f -
2lsof |awk ' {if ( $0 ~ /home/) print substr($0, index($0,"/home") ) }'|cut -d / -f 1-4|sort|uniq -c|sort -bgr
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This command will output 1 if the given argument is a valid ip address and 0 if it is not. Show Sample Output
0perl -e '$p=qr!(?:0|1\d{0,2}|2(?:[0-4]\d?|5[0-5]?|[6-9])?|[3-9]\d?)!;print((shift=~m/^$p\.$p\.$p\.$p$/)?1:0);' 123.123.123.123 -
Files containing ascii art (e.g. with .nfo extension) are typically not correctly reproduced at the command line when using cat. With iconv one can easily write a wrapper to solve this:
#!/bin/bashif [ -z "$@" ]; then echo "Usage: $(basename $0) file [file] ..."else iconv -f437 -tutf8 "$@"; fiexit 09iconv -f437 -tutf8 asciiart.nfo -
Beeps on mouse's every move. Bear in mind that, at least on Ubuntu, /dev/input/mice can be read only by root.
4while true; do beep -l66 -f`head -c2 /dev/input/mice|hexdump -d|awk 'NR==1{print $2%10000}'`; done -
I rarely use the system menu to start applications. I use keyboard shortcuts instead. Keyboard shortcuts are convenient time savers. To configure the shortcuts I use gconf-editor or CompizConfig Settings Manager (if I have Compiz turned on). Lately I've been using Chromium as my browser. Since Chromium is under heavy development it occasionally becomes unusable and I have to switch back to Firefox. I was hard-coding the browser command in my keyboard shortcuts. This became problematic with frequent browser hopping. I now use the xdg-open command when defining my keyboard shortcuts. xdg-open opens a file or URL in the user's preferred application. In the metacity keybinging_commands I have
xdg-open http://gmail.comwhere I used to havefirefox http://gmail.com. Now when switching browsers I don't have to update each keyboard binding command I just change my default browser in Ubuntu by clicking through the menu: System / Preferences / Preferred Applications / Web Browser.xdg-openis more convenient for this browser hopper.8xdg-open http://gmail.com -
-4tokill=`ps -fea|grep process|awk '{ printf $2" "}'`; kill -9 $tokill;
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Infinitely plays beeps with sinusoidally changing sound frequency. Ideal for alarm on an event.
1tempo=33; slope=10; maxfreq=888; function sinus { echo "s($1/$slope)*$maxfreq"|bc -l|tr -d '-'; }; for((i=1;;i++)); do beep -l$tempo -f`sinus $i`; done -
-1tar -C <source> -cf - . | tar -C <destination> -xf -
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I spent a bunch of time yesterday looking for the xsel package in Cygwin- turns out you can use the /dev/clipboard device to do the same thing. Show Sample Output
13cat /dev/clipboard; $(somecommand) > /dev/clipboard -
If you just want to write or append some text to a file without having to run a text editor, run this command. After running the command, start typing away. To exit, type . on a line by itself. Replacing the >> with a single > will let you overwrite your file. Show Sample Output
4cat <<.>> somefilename - ‹ First < 477 478 479 480 481 > Last ›
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