Is it possible, that which is not installed?

[OskarStark]

https://github.com/graste/environaut/blob/master/src/Environaut/Checks/ExecutableCheck.php#L111

[graste]

Using which is a large bet and might by flaky on certain systems with different shells. It's usually not a shell built-in and thus may or may not skip aliases used. Options like --skip-aliases might be missing. There's the posix compliant type command that is able to skip shell aliases as well and might be a better suited candidate for the executable check. I'm just not sure about it and am open to suggestions. Are there any other commands that might be helpful? :-)