| :: | Software | :: | trigger |
trigger-listen [ -UdDqQv1 -c limit -t timeout -i interval -g gid -u uid ] path prog
-q: Quiet. Do not print error messages.
-Q: (Default) Print error messages.
-v: Verbose. Print both status and error messages.
-1: Execute prog immediately upon startup.
-c limit: Execute at most limit copies of prog concurrently. If a trigger pull occurs while limit copies are running, trigger-listen executes prog as soon as one of the running copies exits.
-t timeout: Wait at most timeout seconds for a trigger pull. If timeout seconds elapse without a trigger pull, then trigger-listen pulls its own trigger. The default value of timeout is (unsigned int)~0.
-i interval: Wait at least interval seconds between executions of prog. If it receives a trigger pull within interval seconds of the last execution, trigger-listen executes prog when interval seconds have elapsed. The default value of interval is 0.
-g gid: Switch group ID to gid after preparing to receive trigger pulls.
-u uid: Switch user ID to uid after preparing to receive connections.
-U: Same as -g $GID -u $UID. Typically, $GID and $UID are set by envuidgid.
-d: (Default) Delete. Remove and recreate the fifo path upon startup.
-D: No delete. Do not remove and recreate path upon startup.