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Re: How to Trap exit code from system calls

by Abigail-II (Bishop)
on Jan 21, 2004 at 16:10 UTC ( #322922=note: print w/replies, xml ) Need Help??

in reply to How to Trap exit code from system calls

How about RTFM? From perldoc -f close:
If the file handle came from a piped open "close" will additionally return false if one of the other system calls involved fails or if the program exits with non-zero status. (If the only problem was that the program exited non-zero $! will be set to 0.) Closing a pipe also waits for the pro- cess executing on the pipe to complete, in case you want to look at the output of the pipe after- wards, and implicitly puts the exit status value of that command into $?.


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