SC1027 – ShellCheck Wiki

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Expected another argument for this operator.

Problematic code:

[ $a -ne ]

Correct code:

[ $a -ne $b ]

Rationale:

ShellCheck found a test operator without an operand. This could be a copy-paste fail, bad linebreak, or trying to use <> instead of != or -ne.

Exceptions:

None.

Related resources:

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

ShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.