Return type: Boolean
Returns:       

True or false.

  test expression (and | &) test expression 

Boolean "and" operator. If all of the tests in a test-expression evaluate to true, a value of "true" will result. When a test in the group evaluates to false, no further tests are performed and a value of "false" will result.

Usage example:

  do when a < b and c < d
  ...
  done

Related Syntax    ! (not)    | (or), or

Related Concepts    int32 data type

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