LET ( 1 ) USER COMMANDSLET ( 1 )


NAME

let - evaluate arithmetic expressions

SYNOPSIS

let [ options ] [expr ...]

DESCRIPTION

let evaluates each expr in the current shell environment as an arithmetic expression using ANSI C syntax. Variables names are shell variables and they are recursively evaluated as arithmetic expressions to get numerical values.

let has been made obsolete by the ((...)) syntax of ksh(1) which does not require quoting of the operators to pass them as command arguments.

EXIT STATUS

0
The last expr evaluates to a non-zero value.
>0
The last expr evaluates to 0 or an error occurred.

SEE ALSO

expr(1), test(1), ksh(1)

IMPLEMENTATION

version
let (AT&T Research) 2000-04-02
author
David Korn <dgkorn@gmail.com>
copyright
Copyright © 1982-2010 AT&T Intellectual Property
license
http://www.opensource.org/licenses/cpl1.0.txt