$ cd /volumes/記憶装置の名前

touch -t YYYYMMDDhhmm ファイル名

ちなみに、touchコマンドの機能を調べるには、man touchとコマンドを叩くわけですが、長いので部分的にコピペしておきます。


TOUCH(1)                  BSD General Commands Manual                 TOUCH(1)


     touch — change file access and modification times


     touch [-A [-][[hh]mm]SS] [-acfhm] [-r file] [-t [[CC]YY]MMDDhhmm[.SS]]



     The following options are available:

     -c      Do not create the file if it does not exist.  The touch utility

             does not treat this as an error.  No error messages are displayed

             and the exit value is not affected.

     -f      Attempt to force the update, even if the file permissions do not

             currently permit it.

     -h      If the file is a symbolic link, change the times of the link

             itself rather than the file that the link points to.  Note that

             -h implies -c and thus will not create any new files.

     -m      Change the modification time of the file.  The access time of the

             file is not changed unless the -a flag is also specified.

     -r      Use the access and modifications times from the specified file

             instead of the current time of day.

     -t      Change the access and modification times to the specified time

             instead of the current time of day.  The argument is of the form

             “[[CC]YY]MMDDhhmm[.SS]” where each pair of letters represents

             the following:

                   CC      The first two digits of the year (the century).

                   YY      The second two digits of the year.  If “YY” is

                           specified, but “CC” is not, a value for “YY”

                           between 69 and 99 results in a “CC” value of 19.

                           Otherwise, a “CC” value of 20 is used.

                   MM      The month of the year, from 01 to 12.

                   DD      the day of the month, from 01 to 31.

                   hh      The hour of the day, from 00 to 23.

                   mm      The minute of the hour, from 00 to 59.

                   SS      The second of the minute, from 00 to 61.

             If the “CC” and “YY” letter pairs are not specified, the val-

             ues default to the current year.  If the “SS” letter pair is

             not specified, the value defaults to 0.

Author: 管理者