touch(1)    UNIX System V(Directory and File Management Utilities)     touch(1)


NAME
      touch - update access and modification times of a file

SYNOPSIS
      touch [ -amc ] [ mmddhhmm[yy] ] files

DESCRIPTION
      touch causes the access and modification times of each argument to be
      updated.  The file name is created if it does not exist.  If no time is
      specified [see date(1)] the current time is used.  The -a and -m options
      cause touch to update only the access or modification times respectively
      (default is -am).  The -c option silently prevents touch from creating
      the file if it did not previously exist.

      The return code from touch is the number of files for which the times
      could not be successfully modified (including files that did not exist
      and were not created).

SEE ALSO
      date(1)
      utime(2) in the Programmer's Reference Manual

NOTES
      Users familiar with the BSD environment will find that the -f option is
      accepted, but ignored.  The -f option is unnecessary since touch will
      succeed for all files owned by the user regardless of the permissions on
      the files.

      touch assumes that an all numeric entry is a date and so will not update
      the times for a file when an all numeric filename is specified.
























10/89                                                                    Page 1