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License: GNU General Public License v3.0
System V and POSIX IPC from the command line
License: GNU General Public License v3.0
NAME cmdipc - System V and POSIX IPC from the command line SYNOPSIS cmdipc -Q [OPTION]... [receive] cmdipc -Q [OPTION]... send [--] MESSAGE cmdipc -S [OPTION]... [p|v|z|read] cmdipc -S [OPTION]... set VALUE cmdipc -M [OPTION]... [read] cmdipc -M [OPTION]... write [--] DATA cmdipc -X [OPTION]... [enter|leave] cmdipc -C [OPTION]... [enter|leave|wait] cmdipc -C [OPTION]... notify [all] cmdipc -C [OPTION]... broadcast cmdipc -B [OPTION]... THRESHOLD [enter] cmdipc -B [OPTION]... --remove cmdipc -L [OPTION]... [shared [un]lock] cmdipc -L [OPTION]... exclusive [un]lock cmdipc -R [OPTION]... [--] [MESSAGE] cmdipc --ftok PATH ID DESCRIPTION System V and POSIX interprocess communication from the command line. In addition to the primities shared memory, message queue and semaphores, this tool can from these primitives construct mutexes, conditions, barriers, shared locks and rendezvous. OPTIONS -h, --help Prints this help message and exits -k, --key KEY The key (SysV) or name (POSIX) of the item -m, --mode OCTAL The mode for the item -s, --size SIZE Maximum size for messages -z, --spool SIZE Maximum number of messages -t, --type TYPE Message type -p, --priority PRIO Message priority -d, --delta DELTA Semaphore value increment -i, --initial VALUE Initial semaphore value -b, --timeout SECS Semaphore V/Z timeout, in seconds -l, --length LEN Shared memory read length -o, --offset OFF Shared memory read/write offset -r, --remove Remove unit -n, --nonblocking Do not block, exit with 2 if busy -c, --create Create item -x, --exclusive Create exclusive item -f, --ftok Create unit ID, possibly non-unique -P, --posix Use POSIX IPC rather than System V IPC -Q, --mqueue Use message queue -S, --semaphore Use semaphore -M, --shm Use shared memory -X, --mutex Use mutex -C, --condition Use condition -B, --barrier Use barrier -L, --shared-lock Use shared lock -R, --rendezvous Use rendezvous RATIONALE Interprocess communication in the command line enables much more interesting use of shell scripts. SEE ALSO bus(1), ipcs(1), ipcrm(1), ipcmk(1), flock(1), mkfifo(1), ipcmd Full documentation available locally via: info '(cmdipc)'
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