Commands by Oliviapatterson (0)

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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"

Revert back all files currently checked out by Perforce SCM for edit

send substituted text to a command without echo, pipe
zsh only - This avoids the need for echo "message" | which creates an entire subshell. Also, the text you are most likely to edit is at the very end of the line, which, in my opinion, makes it slightly easier to edit.

View and review the system process tree.
The "pstree" command uses special line-drawing characters. However, when piped into the "less" pager, these are normally disabled.

runs a X session within your X session
http://www.debian-administration.org/article/Running_multiple_X11_sessions

Extract raw URLs from a file
you can also use cut instead of awk. less powerful but probably faster. ;)

Find the package that installed a command

print line and execute it in BASH
If script.sh contains only these two lines: $ uname -a $ whoami

list block devices
Shows all block devices in a tree with descruptions of what they are.

Deleting / Ignoring lines from the top of a file

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