Terminal Cruise

My ungainly friend obtained a PhD in palindromes so now he’s Dr. Awkward.

perl -lne 'print if length($_) >= 5 && $_ eq reverse($_)' words-small

Print ten columns of random numbers with BSD tools:

jot -r 100 | rs 10

Perl one-liner to highlight consecutive duplicated words:

perl -pe 's/\b(\w+)\s+\1\b/\e[31m$&\e[0m/gi' gettysburg.txt