SC2192 – ShellCheck Wiki

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This array element has no value. Remove spaces after = or use "" for empty string.

Problematic code:

array=([1]=one [2]= two)

Correct code:

array=([1]=one [2]=two)


You have an array element on the form [index]=. The shell will interpret this as an independent element with index index and value <empty string>.

This may happen as part of the expression [index]= value, where the space is not allowed and causes the shell to interpret it as [index]="" [index+1]=value.

If you wanted the element to have a value, remove the spaces after =, e.g. [index]=value.

If you wanted to assign an empty string, explicitly use empty quotes: [index]="". This makes no difference to the shell, but will make your intention clear to shellcheck and other humans.



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