Nice one! I modified it a bit to compile and run a C program:
perl -E 'while(-f $ARGV[1]){ $now=(stat(_))[9]; system("@ARGV"), print
+ "-" x 80, "\n" if ($now-$prev); $prev=$now; sleep 1 }' gcc a.c \&\&
+./a.out
I think every Unix/Linux sysadmin should know shell (sh or bash) plus one of Perl, Ruby, Python. It doesn't matter which. -- Tom Limoncelli (http://everythingsysadmin.com/2012/06/salang.html)
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