how can exit based on exit code? 
open(FILE,"run_tool -f "test.tcl" 2>&1|");
open(LOG,">log");
while(<TEMP>){
print;
print log;
}

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if test.tcl file not exists then tool is invoked and it is hanged.how can I come out of while loop. or another case is if did not use exit in tcl script the same problem tool runs and hangs. how can I exit in such situations? I can't use " exit 1 if ($_ =~ /^(Error :)); " becuase tool should run though it gets error messages,but should exit depending on exit status.

In reply to stop process based on exit status. by chandu76

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