If I understand your question correctly, and assuming you're using *nix, you should probably change 
system "abc -add $file";

[download]

to 

system "abc -add $file >abc.out 2>abc.err";

[download]

You should see the messages in one file or the other.

In reply to Re: Question on system function by apl
in thread Question on system function by kprasanna_79

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