4 SC2107

Joachim Ansorg edited this page 2021-11-12 19:33:37 +01:00

Table of Contents

• Instead of [ a && b ], use [ a ] && [ b ].
• Problematic code:
• Correct code:
• Rationale:
• Exceptions:
• Related resources:

Instead of [ a && b ], use [ a ] && [ b ].

Problematic code:

[ "$1" = "-v" && -z "$2" ]

Correct code:

[ "$1" = "-v" ] && [ -z "$2" ]

Rationale:

&& can not be used in a [ .. ] test expression. Instead, make two [ .. ] expressions and put the && between them.

Exceptions:

None.

Related resources:

• Bash Pitfalls: [ "$foo" = bar && "$bar" = foo ]
• StackOverflow: using and (&&) operator in if statement bash script

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.