Davex/doc/help/Touch

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touch -- touch a file's last-mod date, backup bit, invisible bit, or
disable bit
syntax: touch <pathname> [-b y|n] [-d y|n] [-i y|n]
ex: touch myfile
touch =:bin -iy
touch ?:cda -dn
touch ? -bn
'touch' with no options sets a file's modification date/time to the
current date and time without actually modifying the file's contents.
Wildcards are allowed.
This is intended for use with recently-created files that, for some
reason, are not properly date- and time-stamped. (Some DOS 3.3-to-
ProDOS conversion programs, for example, stamp files with an invalid
date and time.)
The -b option lets you set or clear the "needs backup" bit on a
file. Use -by to set the bit or -bn to clear it. See also 'copy',
'update', 'cat', and 'ffind'.
The -i option lets you set or clear a file's "invisible" bit.
Invisible files don't show up in Davex catalog listings unless the
catalog command's -i option is used. The "invisible" bit has been
recently defined by Apple, and other programs may or may not pay
attention to the invisibility of a file.
The -d option lets you ENABLE or DISABLE certain types of Apple IIgs
files. A disabled file is not loaded automatically at boot time.
The filetypes that can be disabled are $B6 (permanent init file), $B7
(temporary init file), $B8 (new desk accessory), $B9 (classic desk
accessory), $BB (driver), $BC (generic load file), and $BD (GS/OS file
system translator). [Bit 15 of the auxiliary type for these filetypes
is the disable bit.]