All commands (14,187)
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This searches apt-cache for the policy of the given command, the policy of any command included its version as well Show Sample Output
0apt-cache policy <package-name> -
The nm-tool utility provides information about NetworkManager, device, and wireless networks.
0nm-tool -
view webcam video with cvlc
0cvlc v4l2:///dev/video0 -
0find . -type f -size +100M -mtime +30 -exec gzip {} \;
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Will prepend date and time in the following format: dd-mm-yyyy@hh:mm:ss (24hours format) and redirect it to make.out file Show Sample Output
0make -j 2>&1 | while IFS= read -r line; do echo "$(date +"%d-%m-%Y@%T") $line"; done > make.out -
This command shows you how much is RSS utilization and real memory Show Sample Output
0ps aux | awk '{sum+=$6} END {print sum / 1024}' -
0findin() { find . -type f -name "*.$1" | xargs ack $2 }
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0^Z then bg
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This command is almost the same as 'ls -a', but it does not display the current dir (.) or parent (..)
0ls -A -
Gnu grep allows to restrict the search to files only matching a given pattern. It also allows to exclude files.
0grep -R --include=*.cpp --include=*.h --exclude=*.inl.h "string" . -
0ddrescue -r 1 /dev/old_disk /dev/new_disk rescued.log
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umph is parsing video links from Youtube playlists ( http://code.google.com/p/umph/ ) cclive is downloading videos from Youtube ( http://cclive.sourceforge.net/ ) Example:
yt-pl2mp3 7AB74822FE7D03E80yt-pl2mp3() {umph -m 50 $1 | cclive -f mp4_720p; IFS=$(echo -en "\n\b"); for track in $(ls | grep mp4 | awk '{print $0}' | sed -e 's/\.mp4//'); do (ffmpeg -i $track.mp4 -vn -ar 44100 -ac 2 -ab 320 -f mp3 $track.mp3); done; rm -f *.mp4} -
Appropriate for today.
0rm -rf /bin/laden -
Assuming we have a disk image, created by dd if=/dev/sda of=image.dd we can check the image's partition layout with fdisk -ul image.dd, then substitute "x" with starting sector of the partition we want to mount. This example assumes that the disk uses 512Byte sectors
0mount -o loop,offset=$((512*x)) /path/to/dd/image /mount/path -
If you used to do `vlc /tmp/Flash*`, but no longer can't, this is for you.
0find -L /proc/`ps aux | grep [f]lash | awk '{print $2}'`/fd/ | xargs file -L | grep Video | awk '{sub(/:/, ""); print $1}' | xargs vlc -
Neat idea! This variation works on FreeBSD.
0date `ssh user@server date "+%y%m%d%H%M.%S"` -
Ctrl+L just rolls up your screen. Try Ctrl+Shift+X if you dont want to get confused between what was before on the screen, and what would be there when you run the next command
0Ctrl+Shift+x -
0strings -f sample.txt
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as alternative to cd $OLDPWD
0cd - -
0sed -i 'g/text/d' <filename>
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When you need a quick ref guide while troubleshooting Apache|NGINX error|access logs. Show Sample Output
0curl http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html 2>/dev/null | grep '^<h3' | grep -v '^\d' | perl -pe 's/^.*(?<=(\d\d\d)) (.*)<\/h3>$/$1 : $2/' | grep -v h3 -
0rename -fc *
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Description by segments delimited by pipe (|) 1. List all git branches 2. Exclude master 3. Trim output and remove display elements such as * next to current branch 4. Repeat branch name after a space (output on each line: branch_name branch_name) 5. Prepend each line with the git tag command 6. Execute the output with bash
0git branch | grep -v "master" | sed 's/^[ *]*//' | sed 's/.*/& &/' | sed 's/^/git tag archive\//' | bash -
Quick OneLiner to sniff for ICMP traffic, proof of concept socket code. Needs root privs to run. Show Sample Output
0echo "exec(\"import socket, os\nwhile True:\n\tprint (socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)).recvfrom(65565)\")" | sudo python -
list of all virtual hosts which are defined in all apache configuration files
0sudo httpd -S 2>&1 | grep 'port' | awk '{print $4,$2,$5}' | sort | column -t - ‹ First < 419 420 421 422 423 > Last ›
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