; doesn't work in Windows. Not even from the prompt. Use && instead of ;, and it works. (Tested using system 1, ( "echo aaa > file1 && copy file1 file2 > nul" );).

Use wait to detect when a child terminates.

In reply to Re: question about running a system and a perl function background by ikegami
in thread question about running a system and a perl function background by Anonymous Monk

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