The London Perl and Raku Workshop takes place on 26th Oct 2024. If your company depends on Perl, please consider sponsoring and/or attending.


Perinci::CmdLine::Plugin::Run::DebugCompletion - Debug completion


This document describes version 1.929 of Perinci::CmdLine::Plugin::Run::DebugCompletion (from Perl distribution Perinci-CmdLine-Lite), released on 2023-11-23.


This plugin will make your script log tab completion information to a log file then exit instead of doing a normal run. It can be used to debug tab completion issues. An example of log line it produces:

 [/path/to/your-script] [prog PROGNAME] [pid 12345] [uid 1000] COMP_LINE=<your-script > (%d char(s)) COMP_POINT=<%s>\n",

This plugin is not included by default. To activate this plugin from the command-line of bash shell:

 % PERINCI_CMDLINE_PLUGINS="-Run::DebugCompletion" your-script ...

By default it logs to /tmp/pericmd-completion.log. To customize the log file location:

 % PERINCI_CMDLINE_PLUGINS="-Run::DebugCompletion,log_file,/path/to/log.file" your-script ...

This plugin runs at the run event at a very high priority (1) then skips all the other run handlers (return 201 status).


Please visit the project's homepage at


Source repository is at


perlancar <>


To contribute, you can send patches by email/via RT, or send pull requests on GitHub.

Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:

 % prove -l

If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.


This software is copyright (c) 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 by perlancar <>.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.


Please report any bugs or feature requests on the bugtracker website

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.