touch(1)

     NAME
          touch - change file timestamps

     SYNOPSIS
          touch [-acfm] [-r file] [-t MMDDhhmm[[CC]YY][.ss]] [-d time]
          [--time={atime,access,use,mtime,modify}] [--date=time]
          [--reference=file] [--no-create] [--help] [--version]
          file...

     DESCRIPTION
          This documentation is no longer being maintained and may be
          inaccurate or incomplete.  The Texinfo documentation is now
          the authoritative source.

          This manual page documents the GNU version of touch.  touch
          changes the access and modification times of each given file
          to the current time.  Files that do not exist are created
          empty.  If the first file name given would be a valid
          argument to the -t option and no timestamp is given with any
          of the -d, -r, or -t options and the -- argument is not
          given, that argument is interpreted as the time for the
          other files instead of as a filename.

          If changing both the access and modification times to the
          current time, touch can change the timestamps for files that
          the user running it does not own but has write permission
          for.  Otherwise, the user must own the files.

        OPTIONS
          -a, --time=atime, --time=access, --time=use
               Change the access time only.

          -c, --no-create
               Do not create files that do not exist.

          -d, --date time
               Use time (which can be in various common formats)
               instead of the current time.  It can contain month
               names, timezones, `am' and `pm', etc.

          -f   Ignored; for compatibility with BSD versions of touch.

          -m, --time=mtime, --time=modify
               Change the modification time only.

          -r, --reference file
               Use the times of file instead of the current time.

          -t MMDDhhmm[[CC]YY][.ss]
               Use the argument (months, days, hours, minutes,
               optional century and years, optional seconds) instead
               of the current time.
          --help
               Print a usage message on standard output and exit
               successfully.

          --version
               Print version information on standard output then exit
               successfully.