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The command used by applications in OS X to determine whether a plist is "good". from Ed Marczak.
The check an entire folder is a one-liner: plutil -lint * | grep -v OK$ from Ed Marczak

Delete empty directories with zsh
This command uses the recursive glob and glob qualifiers from zsh. This will remove all the empty directories from the current directory down. The **/* recurses down through all the files and directories The glob qualifiers are added into the parenthesis. The / means only directories. The F means 'full' directories, and the ^ reverses that to mean non-full directories. For more info on these qualifiers see the zsh docs: http://zsh.dotsrc.org/Doc/Release/Expansion.html#SEC87

backup your playstation game using rip

Remove the first character of each line in a file

Show current iptables rules, with line numbers

Remove invalid key from the known_hosts file for the IP address of a host
Quick shortcut if you know the hostname and want to save yourself one step for looking up the IP address separately.

Windows telnet
Check if TCP port is reacheable

Get the current svn branch/tag (Good for PS1/PROMPT_COMMAND cases)
uses just one sed

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

Test http request every second, fancy display.
Use the command watch, which is really hard to pass nested quotes to, and insert newlines where they are supposed to go in the HTTP request. that is after 1.1 after the host and two newlines at the end before the EOF. i use this all day what? no support for HEREDOCs on commandlinefu's interface? need more fu.


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