# rev
# Reverse a string

# Reverse a string
echo hello world | rev
# dlrow olleh

# Reverse and flip
echo hello world | rev | perl -Mopen=locale -Mutf8 -pe tr/a-z/ɐqɔpǝɟƃɥıɾʞlɯuodᕹɹsʇnʌʍxʎz/
# plɹoʍ ollǝɥ