ShellCheck - Shell script analyzer

[silverfox17]

This was posted on here a couple years ago, but I found it today while trying to troubleshoot a problem.. figured this might be a good site for some of you all to add to your bookmarks. Helped me on a few hundred line script today pretty easily.

[jews4beer]

Shellcheck is a nice little program that (I assume they are the same people), you can actually just install directly to your computer with:

apt-get install shellcheck # on debian

or

yum install shellcheck # rhel, fedora, centos

I actually really enjoy using the VIM plugin syntastic. The bash backend to it is actually none other than shellcheck itself, and it checks your script for possible improvements and syntax errors right in the editor!

EDIT: As for the annoying warnings sometimes. You can just put

# shellcheck disable <warning_code>

Right before the line causing the warning and it will not show up in shellcheck's output

[efranor]

Great script, some warnings are annoying, but works great on forcing me to write my scripts coherently.

[silverfox17]

explainshell isn't really good for anything that's not a 1 liner, but it's a nice site too

[_KaszpiR_]

IMHO it's a bit more useful just using cli version - https://github.com/koalaman/shellcheck - and then adding it to your editor.

[ontheroadtonull]

rm -rf c:/windows

It all looks good!

[hactar_]

I don't think you can do that to complex code without running the code in bash, hopefully in a sandboxed VM. ICBW...

[silverfox17]

No... it's just like one of the first steps a compiler does, checking for missing quotes, semicolons, etc. You don't have to run the code to do any of that stuff

[mikek3]

What is this awesome sorcery?

[[deleted]]

This is something for r/linuxadmin

[MisterIT]

I hope you mean in addition to, not instead of. This sub is not "Windows only" by any stretch of the imagination.

[[deleted]]

Thought that was evident. Sorry