DOKK / manpages / debian 10 / termdebug / tdcompare.1.en
TDCOMPARE(1) termdebug TDCOMPARE(1)

tdcompare - compare two recordings of a terminal program

tdcompare [OPTIONS]... OLD NEW

tdcompare compares two recordings of a terminal program to determine whether they represent the same output. The comparison can be both at the input/output level, or at the visual level. When comparing at the input/output level, the difference will be reported as line numbers in the OLD and NEW files. For visual comparisons, a textual description of the first difference can be produced, and a picture of the first different terminal state can be written (if termdebug was compiled with Cairo support).

tdcompare is useful to verify that a new recording of the same program produced the same result. To do on-line verification, use tdreplay(1) instead.

tdcompare accepts the following options:

Display a short help message.
Print version and copyright information.
Check for visual equality, rather than exact input/output behaviour. (Requires a build with ncurses support.)
Write a description of the first visual difference encountered. Only useful with -v/--visual-compare. (Requires a build with ncurses support.)
Write a picture of the difference to name. Only useful with -v/--visual-compare. (Requires a build with ncurses and Cairo support.)
Use font to show text in generated pictures. Only useful with -p/--picture or -P/--picture-series. (Requires a build with ncurses and Cairo support.)
Use cells of width pixels wide in generated pictures. Only useful with -p/--picture or -P/--picture-series. (Requires a build with ncurses and Cairo support.)
Use cells of height pixels wide in generated pictures. Only useful with -p/--picture or -P/--picture-series. (Requires a build with ncurses and Cairo support.)
Create a series of pictures, representing the different visual steps in the client interface, using name as the file name template. name is a printf(3) format string, where a single d-type conversion is required. (Requires a build with ncurses and Cairo support.)
Stop when the first visual difference is found. Only valid with -P/--picture-series.

To stop tdcompare from interpreting file names that start with a dash as options, one can specify a double dash (--) after which tdreplay will interpret any following arguments as files to read.

If you think you have found a bug, please check that you are using the latest version of termdebug <http://os.ghalkes.nl/termdebug>. When reporting bugs, please include a minimal example that demonstrates the problem.

G.P. Halkes <termdebug@ghalkes.nl>

Copyright © 2010,2012-2013 G.P. Halkes
termdebug is licensed under the GNU General Public License version 3.
For more details on the license, see the file COPYING in the documentation directory. On Un*x systems this is usually /usr/share/doc/termdebug.

termdebug(1), tdrecord(1), tdrerecord(1), tdview(1), tdreplay(1)

2013/03/03 2.2