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#!/usr/bin/perl -wl $| = 1; # unbuffered output ... killing 14782 this goes to STDOUT (log_2) This goes to STDERR (log_2) at tee.pl line 8.
$ cat log_1 log_2 this goes to STDOUT (log_1) This goes to STDERR (log_1) at tee.pl line 8. this goes to STDOUT (log_2) This goes to STDERR (log_2) at tee.pl line 8.