Its always a good idea to do basic status checking of even the most trivial system call. There's always a chance of failure on a live system. For example:
- incorrect path setup
- exhaustion of resources such as physical disk
- shell not available
- permissions or process limits
- missing utilities (although unlikely with sed)
- many others ....
system "sed 's/,)/)/' pbxiplp > pbxiplp1"
and die "system call failed: $!";
See also system
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