Commands tagged Linux (264)

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Shows what processes need to be restarted after system upgrade
This command can be installed in debian by the package debian-goodies. It also outputs the /etc/init.d/ commands that you need to do.

Retrieve a random command from the commandlinefu.com API
Can be integrated into your .bashrc if you like. You'll probably want to grep out my name.

execute a shell with netcat without -e
Shorter version with proper stderr redirection .

Localize provenance of current established connections
Sample command to obtain a list of geographic localization for established connections, extracted from netstat. Need geoiplookup command ( part of geoip package under CentOS)

Generate a random left-hand password
Generates a random 8-character password that can be typed using only the left hand on a QWERTY keyboard. Useful to avoid taking your hand off of the mouse, especially if your username is left-handed. Change the 8 to your length of choice, add or remove characters from the list based on your preferences or kezboard layout, etc.

See where a shortened url takes you before click

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Report bugs in Ubuntu
As of 10.04 LTS, you need to use this command-line to reports bugs to the launchpad.net tracking system (you need a launchpad acct for this to work). This command is preferred over using the website because it collects/sends info about your system to help developers. ubuntu-bug is a symlink to apport-bug which sees if KDE/Gnome is running and calls apport-gtk/apport-kde dialogs, otherwise apport-cli, so you can fill out a bug report. First run 'ubuntu-bug' without args to see a list of known symptoms. If there's no matching symptom, or you know which package is to blame, then run 'ubuntu-bug <package>'. If the process is still running, use 'ubuntu-bug <PID>'

find duplicate processes
This command will allow to search for duplicate processes and sort them by their run count. Note that if there are same processes run by different users you'll see only one user in the result line, so you'll need to do: $ ps aux | grep to see all users that run this command.

Ergo browsing 'pacman' queries (Arch)
Alternative1 (grep support): pacman -Ss python | paste - - | grep --color=always -e '/python' | less -R Alternative2 (eye-candy, no grep): pacman --color=always -Ss "python" | paste - - | less -R in ~/.bashrc: pkg-grep() { pacman -Ss "$1" | paste - - | grep --color=always -e "${2:-$1}" | less -R ; } pkg-search() { pacman --color=always -Ss "python" | paste - - | less -R; }


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