Commands by ktonga (1)

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List users with running processes
This is different that `who` in that who only cares about logged-in users running shells, this command will show all daemon users and what not; also users logged in remotely via SSH but are running SFTP/SCP only and not a shell.

draw line separator
Even shorter: $ seq -s '*' 120|tr -d '[0-9]'

silent/shh - shorthand to make commands really quiet
Sometimes I just want to run a command quietly but all that keyboard shifting makes my fingers hurt. This little function does the job eg.: $ if shh type less; then PAGER=less; fi

Remove all subversion files from a project recursively
This command will remove all .svn folder from your project if you need to manual remove the subversion files.

Find the package that installed a command

find builtin in bash v4+
This command will give you the same list of files as "find /etc/ -name '*killall' | xargs ls -l". In a simpler format just do 'ls /etc/**/file'. It uses shell globbing, so it will also work with other commands, like "cp /etc/**/sshd sshd_backup".

sniff network traffic on a given interface and displays the IP addresses of the machines communicating with the current host (one IP per line)

Print all lines between two line numbers
Print all lines between two line numbers This command uses sed(1) to print all lines between two known line numbers in a file. Useful for seeing output in a log file, where the line numbers are known. The above command will print all lines between, and including, lines 3 and 6.

du with colored bar graph
A more efficient way, with reversed order to put the focus in the big ones.

Replace duplicate files by hardlinks


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