rev Command

Purpose

Reverses characters in each line of a file.

Syntax

rev [ File ... ] 

Description

The rev command copies the named files to standard output, reversing the order of characters in every line. If you do not specify a file, the rev command reads standard input.

Examples

To reverse characters in each line of a file, type:

rev file

If the file file contains the text:

abcdefghi
123456789

then the rev command displays:

ihgfedcba
987654321

Files