Bear Proposal: ShebangBear

[coala-bot]

Create a bear that enforces the usage of /usr/bin/env instead of directly calling it like /usr/bin/python3. The reason why /usr/bin/env is important because it'll find the correct path for the binary we wanna use. Not every distribution follows Linux's FHS (ex. macOS, GNU Guix, Nix OS, etc).

An extreme example of this is how portability is reduced on BSD (or installs of Slackware) because /usr is usually filled with programs that are installed by default and everything else is on /usr/local.

Note: Yes, it is called Shebang. https://en.wikipedia.org/wiki/Shebang_(Unix)

Opened via gitter by @yukiisbored

[AMR-KELEG]

Would it be enough to check the first line and ensure that it is #!/usr/bin/env ?

[Makman2]

shebang has to be in the first line, so yes :) @AMR-KELEG
you can read about some official shebang "standards"/behaviour in the wikipedia entry: https://en.wikipedia.org/wiki/Shebang_(Unix)