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termdiff

This script lets you diff the outputs of bash commands run at different times.

Installation

To install, use the provided Makefile:

$ sudo make install

Similarly, to uninstall, simply use the uninstall make target.

NOTE: To install/uninstall the man pages, make must be run with sudo.

Debian

You can use this repo to easily build a .deb file for simpler installation/removal.

Usage

To use, simply prefix the command you wish to run with termdiff.

$ termdiff date

This will store the output of the command in a temporary file and compare the output to the output of the most recently termdiff'd command (if any).

$ termdiff date
$ termdiff date
@@ -1 +1 @@
-Sat Jun 23 15:11:26 EDT 2018
+Sat Jun 23 15:11:28 EDT 2018

NOTE: diffs are stored on a per-terminal basis, so commands that you termdiff in different terminals won't interfere.

Options

termdiff [OPTION]... COMMAND...

-t, --temporary
       Don't save/cache current output for future diffs.

-o, --output
       Display command output to the console (stdout) - disabled by default.

-s, --silent
       Don't display diff between current and cached command output.

-e, --errors
       Save & diff stderr as well as stdout.

-g, --global
       Saves  &  diffs output to global (all terminals) cache, allowing commands in different terminals to be diffed.

Cleanup

To remove all of the temporary cache files (stored in /tmp/termdiff), you can use make clean.