August 1999

Perl Hardware Store

Slide #7

Schwartzian Transform

Well-known to Unix shell programmers:

         # Sort file names by file size

         ls -l | sort -n +4 | awk '{print $NF}'

         # Sort output of SOMETHING from most frequent to least

         SOMETHING | uniq -c 
           | sort -nr | awk '{$1=""; print}'