perlancar

NAME

exec-if-not-env - Execute command if certain environment variable is false

VERSION

This document describes version 0.02 of exec-if-not-env (from Perl distribution App-ExecIf), released on 2017-07-04.

SYNOPSIS

Usage:

 % exec-if-not-env RUN somecmd --cmdopt ...

The above will run somecmd only if RUN environment variable is not defined or false (with the notion of false follows Perl, i.e undefined, '', and 0 are false).

DESCRIPTION

EXIT CODES

99 on command-line options error.

Otherwise exit code from command is returned.

Couldn't the same thing be accomplished with shell?

Yes, you can also do something like this in bash:

 if [[ "$SOMEENV" == 1 ]]; then false; else somecmd --cmdopt ...; fi

But using this utility is simpler and more portable.

OPTIONS

  • --help, -h

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/App-ExecIf.

SOURCE

Source repository is at https://github.com/sharyanto/perl-App-ExecIf.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=App-ExecIf

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.

SEE ALSO

App::ExecIf

exec-if-env

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2017, 2013 by perlancar@cpan.org.

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