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 <[email protected]>. Modified by Robert Luberda <[email protected]>.

BUGS

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

COPYRIGHT

Copyright © 2003 by Matthias Urlichs.

Copyright © 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.

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