This function returns the process group for the process ID specified by EXPR, or the current process group if none is specified.
Following is the simple syntax for this function −
getpgrp EXPR getpgrp
This function returns process group ID.
Following is the example code showing its basic usage −
#!/usr/bin/perl $pgid = getpgrp(); print "Current process Group ID $pgid\n";
When above code is executed, it produces the following result −
Current process Group ID 1