Looks up the first argument (optional in the english Wiktionary
which is an online dictionary (See: http://en.wiktionary.org/).
-: **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.
Lists the contents of a (compressed) archive with the appropriate programs.
The choice is made along the filename extension.
-: **shtar()**
-Lists the content of a gzipped tar archive in default pager.
-
-: **shzip()**
-Shows the content of a zip archive in default pager.
-
: **simple-extract()**
Tries to uncompress/unpack given files with the appropriate programs. If an URI
starting with https, http or ftp is provided simple-extract tries to download