Use the exec PROGRAM LIST form to call the external program. You will probably need a full path to the executable, but the shell won't mangle your arguments. 

# actually a list of tokens, not one string.
exec qw{/usr/bin/tcpreplay -i eth2 -N 192.168.0.1/32:1.1.1.1/32,192.16
+8.0.2/32:2.2.2.2/32 test.cap};

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In reply to Re: how to pass colon and comma in exec args by gaal
in thread how to pass colon and comma in exec args by billbabcock

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