LET(1) User Commands LET(1)
NAME
let - shell built-in function to evaluate one or more arithmetic
expressions
SYNOPSIS
ksh let arg...
ksh93 let [
expr...]
DESCRIPTION
ksh Each
arg is a separate arithmetic expression to be evaluated.
ksh93 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
ksh93(1) which does not require quoting of the
operators to pass them as command arguments.
EXIT STATUS
ksh ksh returns the following exit values:
0 The value of the last expression is
non-zero.
1 The value of the last expression is zero.
ksh93 ksh93 returns the following exit values:
0 The last
expr evaluates to a
non-zero value.
>0 The last
expr evaluates to
0 or an error occurred.
SEE ALSO
ksh(1),
ksh93(1),
set(1),
typeset(1),
attributes(7) November 2, 2007 LET(1)
