: **exirename()**
Renames image files based on date/time informations in their exif headers.
-: **fir()**
-Opens given URL with Firefox (Iceweasel on Debian). If there is already an
-instance of firefox running, attaches to the first window found and opens the
-URL in a new tab (this even works across an ssh session).
-
: **freload()**
Reloads an autoloadable shell function (See autoload in zshbuiltins(1)).
Creates directory including parent directories, if necessary. Then changes
current working directory to it.
-: **mdiff()**
-Diffs the two arguments recursively and writes the
-output (unified format) to a timestamped file.
-
-: **memusage()**
-Prints the summarized memory usage in bytes.
-
: **mggogle()**
Searches Google Groups for a USENET message-ID.