-
- let - evaluate arithmetic expressions
-
- let [ options ] [expr ...]
-
- 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.
-
- 0
- The last expr evaluates to a non-zero value.
- >0
- The last expr evaluates to 0 or an error occurred.
-
- expr(1), test(1), ksh(1)
-
- version
- let (AT&T Research) 2000-04-02
- author
- David Korn <dgk@research.att.com>
- copyright
- Copyright © 1982-2008 AT&T Intellectual Property
- license
- http://www.opensource.org/licenses/cpl1.0.txt