# File permission

This linter verifies if a file has unnecessary permissions.
If a file has execution permissions (+x), file-perm will
generate a warning.

It will ignore files starting with `#!` for types of files
that typically have shebang lines (such as python, node or
shell scripts).

This linter does not have any affect on Windows.

## Run Locally

This mozlint linter can be run using mach:

```{eval-rst}
.. parsed-literal::

    $ mach lint --linter file-perm <file paths>

```

## Configuration

This linter is enabled on the whole code base.

This job is configured as [tier 2](https://wiki.mozilla.org/Sheriffing/Job_Visibility_Policy#Overview_of_the_Job_Visibility_Tiers).

## Autofix

This linter provides a `--fix` option.

## Sources

- {searchfox}`Configuration (YAML) <tools/lint/file-perm.yml>`
- {searchfox}`Source (Rust) <tools/lint/mozcheck/src/file_perm.rs>`