rev

Reverse a line of text or a file. More information: https://manned.org/rev.

• Reverse text typed into terminal:

rev

• Reverse the text string “hello”:

echo "hello" | rev

• Reverse an entire file and print to stdout:

rev path/to/file

• Use ‘\0’ as a line separator (zero termination):

rev -0 path/to/file

• Display help:

rev -h

• Display version:

rev -V