xclip(1) on Linux
The text 4e694d7ce68d, as Debian 6.0 (Squeeze) shipped it.
command line interface to X selections (clipboard)
Flags it lists
-
-d -
-display -
-f -
-filter -
-h -
-help -
-i -
-in -
-l -
-loops -
-o -
-out -
-quiet -
-selection -
-silent -
-verbose -
-version