The replay simply displays the information again; the programs that were run when the typescript was being recorded are not run again. Since the same information is simply being displayed, scriptreplay is only guaranteed to work properly if run on the same type of terminal the typescript was recorded on. Otherwise, any escape characters in the typescript may be interpreted differently by the terminal to which scriptreplay is sending its output.
The timings information is what script(1) outputs to standard error if it is run with the -t parameter.
By default, the typescript to display is assumed to be named ``typescript'', but other filenames may be specified, as the second parameter.
If the third parameter is specified, it is used as a speed-up multiplier. For example, a speed-up of 2 makes scriptreplay go twice as fast and a speed-up of 0.1 makes it go ten times slower than the original session.
% script -t 2> timingfile Script started, file is typescript % ls <etc, etc> % exit Script done, file is typescript % scriptreplay timingfile
Copyright © 2008 Karel Zak
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Released under the GNU General Public License version 2 or later.