June 2004
Intermediate to advanced
1056 pages
39h 58m
English
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Name
let
Synopsis
let
expressions
Perform arithmetic as specified by one or more integer
expressions.
expressions consist of numbers, operators,
and shell variables (which don’t need a preceding
$), and must be quoted if they contain spaces or other special
characters. For more information and examples, see Section 20.4. See also expr
in Chapter 28.
Examples
Both of the following examples add 1 to variable i:
let i=i+1let "i = i + 1"
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.