SC2282 - variables starting with numbers aren't flagged as errors if done in arithmetic context - Githubissues

koalaman / shellcheck

ShellCheck, a static analysis tool for shell scripts

https://www.shellcheck.net

GNU General Public License v3.0

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SC2282 - variables starting with numbers aren't flagged as errors if done in arithmetic context #2958

Open RVC2020 opened 7 months ago

RVC2020 commented 7 months ago

For bugs

Rule Id: SC2282
My shellcheck version (shellcheck --version or "online"): 0.10.0
[x] The rule's wiki page does not already cover this
[x] I tried on https://www.shellcheck.net/ and verified that this is still a problem on the latest commit

For new checks and feature suggestions

[x] https://www.shellcheck.net/ (i.e. the latest commit) currently gives no useful warnings about this
[x] I searched through https://github.com/koalaman/shellcheck/issues and didn't find anything related

Here's a snippet or screenshot that shows the problem:


#!/bin/bash
((1num=1+2))
2num=$((10+1))

Here's what shellcheck currently says:

In test.sh line 3: 2num=$((10+1)) ^------------^ SC2282 (error): Variable names can't start with numbers, so this is interpreted as a command.

Here's what I wanted or expected to see:

1num also be flagged as an error under SC2282,