How do I exit the command shell after it invokes a Perl script?

Question

If I run a Perl script from a command prompt (c:\\windows\\system32\\cmd.exe), how can I exit the command prompt after the script finishes executing.

I tried system("exit 0") inside the Perl script but that doesn't exit the cmd prompt shell from where the Perl script is running.

I also tried exit; command in the Perl script, but that doesn't work either.

Answer 1

Try to run the Perl script with a command line like this:

perl script.pl & exit

The ampersand will start the second command after the first one has finished. You can also use && to execute the second command only if the first succeeded (error code is 0).

Answer 2

Have you tried cmd.exe /C perl yourscript.pl ?

According to cmd.exe /? /C carries out the command specified by string and then terminates.

Answer 3

You can start the program in a new window using the START Dos command . If you call that with /B then no additional window is created. Then you can call EXIT to close the current window.

Would that do the trick?

Answer 4

If you're starting the command shell just to run the perl script, the answer by Arkaitz Jimenez should work (I voted for it.)

If not, you can create a batch file like runmyscript.bat , with content:

@echo off
perl myscript.pl
exit

The exit will end the shell session (and as a side effect, end the batch script itself.)

Answer 5

You can send a signal to the parent shell from Perl:

 kill(9,$PARENT_PID);`

Unfortunately, the getppid() function is not implemented in Perl on windows so you'll have to find out the parent shell PID via some other means. Also, signal #9 might not be the best choice.