You are viewing the version of this documentation from Perl 5.31.7. This is a development version of Perl.
semget KEY,NSEMS,FLAGS

Calls the System V IPC function semget(2). Returns the semaphore id, or the undefined value on error. See also "SysV IPC" in perlipc and the documentation for IPC::SysV and IPC::Semaphore.

Portability issues: "semget" in perlport.