Command LET

Function:

Evaluate an expression and set the specified environment variable with the result.

LET variable=expr

variable	Environment variable name where the result is stored.
expr	Expression to evaluate.

• Parameter expr follows the same rules as parameter expr for command CALC. Also, when parameter expr includes characters that have a special meaning (eg. <, >, & etc) then enclose the complete expr in brackets, as follows :-

  LET variable=( expr )

• Also see command SET, XSET, CALC and Batch Programs.