let: Linux Commands HowTo
let: Perform arithmetic on shell variables
Perform arithmetic on shell variables.
Syntax
let expression [expression]
Each expression is an arithmetic expression to be evaluated. If the last expression evaluates to 0, let
returns 1; otherwise 0 is returned.
`let? is a bash builtin command.
"Arithmetic is being able to count up to twenty without
taking off your shoes." - Mickey
Mouse
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