lckdo (1) Linux Manual Page
lckdo – run a program with a lock held
Synopsis
- lckdo [options] {lockfile} {program} [arguments]
Description
lckdo Now that util-linux contains a similar command named flock, lckdo is deprecated, and will be removed from some future version of moreutils.
Options
-w- If the lock is already held by another process, wait for it to complete instead of failing immediately.
-W {sec}
- The same as -w but wait not more than sec seconds.
-e
- Execute the program directly without forking and waiting (keeps an extra file descriptor open).
-E {nnn}
- Set the file descriptor number to keep open when exec()ing (implies -e).
-n
- Do not create the lock file if it does not exist.
-q
- Produce no output if lock is already held.
-s
- Lock in shared (read) mode.
-x
- Lock in exclusive (write) mode (default).
-t
- Test for lock existence.