NAME

       rev - reverse lines characterwise

SYNOPSIS

       rev [option] [file...]

DESCRIPTION

       The  rev  utility  copies  the  specified files to standard output, reversing the order of
       characters in every line.  If no files are specified, standard input is read.

       This utility is a line-oriented tool and it uses in-memory allocated buffer  for  a  whole
       wide-char  line.   If  the  input  file  is huge and without line breaks than allocate the
       memory for the file may be unsuccessful.

OPTIONS

       -V, --version
              Display version information and exit.

       -h, --help
              Display help text and exit.

SEE ALSO

       tac(1)

AVAILABILITY

       The rev command is part of the util-linux package  and  is  available  from  Linux  Kernel
       Archive ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.