3

SC2192

Joachim Ansorg edited this page 2021-11-12 19:46:43 +01:00

Table of Contents

• This array element has no value. Remove spaces after = or use "" for empty string.
• Problematic code:
• Correct code:
• Rationale:
• Exceptions:

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)

Rationale:

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.

Exceptions:

None.

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