If you're running under Unix (Mac is Unix), then the ps -aef command will show running jobs. ON my Mac ... 

  UID   PID  PPID   C     STIME TTY           TIME CMD
    0     1     0   0   0:01.00 ??         0:01.38 /sbin/launchd
    0    11     1   0   0:00.82 ??         0:01.04 /usr/libexec/kextd
    0    12     1   0   0:07.11 ??         0:13.22 /usr/sbin/Directory
+Service
    0    13     1   0   0:01.11 ??         0:01.64 /usr/sbin/notifyd
    0    14     1   0   0:00.73 ??         0:01.57 /usr/sbin/syslogd
...
    0   347   346   0   0:00.02 ttys000    0:00.03 login -pf tomdlux
  503   348   347   0   0:00.11 ttys000    0:00.53 -bash
    0  3935   348   0   0:00.00 ttys000    0:00.00 ps -aef

[download]

You can see that this 'ps' command had Process ID (PID) 3935, and Parent ID (PPID) 348 ... that's a bash shell which was launched by 'login'

use English '-no_match_vars'; will allow you to use $PID or $PROCESS_ID to see your process id, as will getpid(), described in perldoc perlfunc. The parent id is fetched by getppid(). If you're multi-threaded on Linux, you'll want Linux::PID.

If you're on Windows, you're welcome to switch to Unix.

As Occam said: Entia non sunt multiplicanda praeter necessitatem.

In reply to Re: Find name of calling script? by TomDLux
in thread Find name of calling script? by tel2

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