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SC2272

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Joachim Ansorg edited this page Nov 12, 2021 · 2 revisions

ShellCheck

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Command name contains ==. For comparison, use [ "$var" = value ].

Problematic code:

$a/$b==foo/bar

Correct code:

[ "$a/$b" = "foo/bar" ]

Rationale:

ShellCheck found a command name that contains a ==. Most likely, this was intended as a kind of comparison.

To compare two values, use [ value1 = value2 ]. Both the brackets and the spaces around the = are relevant.

Exceptions:

None, though you can quote the == to suppress the warning.

Related resources:

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