xenial (1) datefudge.1.gz

Provided by: datefudge_1.21_amd64 bug

NAME

       datefudge - pretend the system time is different

SYNOPSIS

       datefudge [-s|--static] at_date program [arguments ...]

DESCRIPTION

       datefudge  is  a  small  utility  that  pretends that the system time is different by pre-loading a small
       library which modifies the time(2), gettimeofday(2) and clock_gettime(2) system calls.

DATE FORMAT

       The at_date argument can be given in any format accepted by the date(1) program, for example  "2007-04-01
       12:21" or "yesterday", or "next Friday".

OPTIONS

       --static, -s
              Mark  the  date  as  a `static' one.  The above mentioned system calls will always return the date
              given in the at_date argument, regardless of time passing. See EXAMPLES
               below.

       --help, -h
              Print short usage information and exit.

       --version, -v
              Print version information and exit.

EXAMPLES

   Basic examples:
       $ datefudge "2007-04-01 10:23" date -R
       Sun, 01 Apr 2007 10:23:00 +0200

       $ datefudge "1 May 2007" date -R
       Tue, 01 May 2007 00:00:00 +0200

       $ datefudge "2 weeks ago" date -R
       Wed, 16 Jan 2008 13:32:12 +0100

   Non-static vs. static example:
       $ datefudge "2007-04-01 10:23" sh -c "sleep 3; date -R"
       Sun, 01 Apr 2007 10:23:03 +0200

       $ datefudge --static "2007-04-01 10:23" sh -c "sleep 3; date -R"
       Sun, 01 Apr 2007 10:23:00 +0200

AUTHOR

       Written by Matthias Urlichs <smurf@noris.de>. Modified by Robert Luberda <robert@debian.org>.

BUGS

       There is no attempt to make this change undetectable by the program.  In  particular,  file  modification
       times are not modified.

       Copyright © 2003 by Matthias Urlichs.
       Copyright © 2008-2016 by Robert Luberda.

       There  is  NO  warranty;  not  even  for  MERCHANTABILITY  or  FITNESS FOR A PARTICULAR PURPOSE.  You may
       redistribute copies of datefudge under the terms of the GNU General Public License.
       For more information about these matters, see the file named COPYING.

SEE ALSO

       date(1), ld.so(1), time(2), gettimeofday(2), clock_gettime(2)