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ShellCheck plugin for SonarQube

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You need a space before and after the = .
Problematic code
[ "$var"= 2 ]

Correct code
[ "$var" = 2 ]

Rationale
You appear to be missing the space on the left side of the operator. Shell in general, and [ in particular, is space sensitive. Operators and operands must be separate tokens.
Please ensure that the operator, like the = in the example, has a space both before and after it.
Exceptions
None. If you're comparing values in C style reverse order like [ -eq == $1 ], use quotes: [ "-eq" == "$1" ]. Also, it's pointless since [ a = b ] doesn't assign.