lockfile-progs 0.1.10 (powerpc binary) in ubuntu dapper

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-touchlock
   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.