debian man page for datefudge

DATEFUDGE(1)							      Debian							      DATEFUDGE(1)

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.

OPTIONS
       --static, -s
	      set date as a `static' one. The above mentioned system calls will always return the date	passed	as  a  parameter  of  the  program
	      regardless of time passing. See EXAMPLES below.

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

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

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

   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
       Copyright (C) 2003 by Matthias Urlichs.
       Copyright (C) 2008-2011 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
       ld.so(1), time(2), gettimeofday(2), clock_gettime(2)

datefudge 1.17							  June 23th, 2011						      DATEFUDGE(1)