-: **genthumbs()**
-A simple thumbnails generator. Resizes images (i. e. files that end in ".jpg",
-".jpeg", ".gif" or ".png") to 100x200. Output files are named "thumb-<original
-filename>". Creates an index.html with title "Images" showing the
-thumbnails as clickable links to the respective original file.
-//Warning:// On start genthumbs() silently removes a possibly existing "index.html"
-and all files and/or directories beginning with "thumb-" in current directory!
-
-: **get_tw_cli()**
-Fetches 3ware RAID controller software using get_3ware(1).
-
-: **ggogle()**
-Searches the arguments on Google Groups, a web to USENET gateway.
-
-: **google()**
-Searches the search engine Google using arguments as search string.
-
-: **greph()**
-Searches the zsh command history for a regular expression.
-
-: **hex()**
-Prints the hexadecimal representation of the number supplied as argument
-(base ten only).
-