(C) 2003, Tim Maher       1-31       www.TeachMePerl.com
How does it Work?


perl -wlp -e 's|[0-9]+| $& * (8/5) |ge;' F

     -w: enable warnings

     -p: read input from F, and print lines

     -e: execute program in following argument

s|RE|X|ge: replace match by X's output

   [0-9]+:  matches one or more digits

     $&:  contents of last match

   file: file(s) to be processed