August 2000
Intermediate to advanced
816 pages
29h 45m
English
book
Linux in a Nutshell, Third Edition
by Ellen Siever, Stephen Spainhour, Jessica P. Hekman, Stephen Figgins
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Name
declare
Synopsis
declare [options] [name [= value]]
typeset [options] [name [= value]]
Description
Print or set variables. Options prefaced by + instead of - are inverted in meaning.
- -a
Treat the following names as array variables.
- -f
Treat the following names as functions.
- -i
Expect variable to be an integer, and evaluate its assigned value.
- -p
Print names and settings of all shell variables and functions; take no other action.
- -r
Do not allow variables to be reset later.
- -x
Mark variables for subsequent export.
- -F
Print names of all shell functions; take no other action.
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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.