2 SC2277

Joachim Ansorg edited this page 2021-11-12 19:58:39 +01:00

Table of Contents

• Use BASH_ARGV0 to assign to $0 in bash (or use [ ] to compare).
• Problematic code:
• Correct code:
• Rationale:
• Exceptions:
• Related resources:

Use BASH_ARGV0 to assign to $0 in bash (or use [ ] to compare).

Problematic code:

#!/bin/bash
$0=myscriptname

Correct code:

#!/bin/bash
BASH_ARGV0=myscriptname

Rationale:

You appear to be trying to assign a new value to $0 in a Bash script. To do this, instead assign to the special variable BASH_ARGV0.

If you instead wanted to compare the value of $0, use a comparison like [ "$0" = "myname" ].

Exceptions:

None.

Related resources:

• Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!

ShellCheck

• Installation

  • CentOS6
  • More Installation Guides

• Usage

  • Directive
  • Ignore

• Integrating and extending

  • Misc. contributions
  • Azure Pipelines
  • Buildkite
  • CircleCI
  • DevGuide
  • Integration
  • JUnit
  • Phabricator
  • TravisCI
  • GitLab CI
  • Drone
  • GitHub Actions

• Severity

• Template

Each individual ShellCheck warning has its own wiki page like SC1000. Use GitHub Wiki's "Pages" feature above to find a specific one, or see Checks.