TOUCH(1) — UNIX Programmer’s Manual
NAME
touch − update date last modified of a file
SYNOPSIS
touch [ −c ] file ...
DESCRIPTION
Touch attempts to set the modified date of each file. This is done by reading a character from the file and writing it back.
If a file does not exist, an attempt will be made to create it unless the −c option is specified.
EXAMPLE
touch filea fileb
sets the "date last modified" of the two files to the current date.
SEE ALSO
7th Edition