shrinkfile(1) on Linux
The text 7c423c987299, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
shrink a file on a line boundary
Flags it lists
-
-n -
-s -
-v