(C) 2003, Tim Maher       1-30       www.TeachMePerl.com
Converting Miles to Kilometers (cont.)
Using Perl's "eval" in a Substitution



can replace numeric values by ones 8/5ths greater
using calculation on $&, which contains what was matched
uses | as alternate delimiter for /
perl -wlp -e 's|[0-9]+| $& * (8/5) |ge;'