Binary package “lockfile-progs” in ubuntu focal
Programs for locking and unlocking files and mailboxes
This package includes several programs to safely lock and unlock
files and mailboxes from the command line. These include:
.
lockfile-create
lockfile-remove
lockfile-
mail-lock
mail-unlock
mail-touchlock
.
These programs use liblockfile to perform the file locking and
unlocking, so they are guaranteed compatible with Debian's
file locking policies.