December 2000
Intermediate to advanced
800 pages
22h 41m
English
Content preview from Special Edition Using Linux®, Sixth Edition
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Default Shell Environment
As mentioned previously, when you log in and get a shell, a number of things happen: Certain files are read, some variables are set, and perhaps even a program or two are run. Most of what happens sets up your default environment. This environment is set via the previously mentioned files. A few, however, such as $HOME (a notation indicating a user's home directory—under bash, this can also be abbreviated as a tilde [~])—and $SHELL (which is the shell login called) are obtained from /etc/passwd, as is the UID.
Variables
Listing 14.1 shows a sample /etc/profile. As you can see, one of the first things set is PATH. Custom dictates that environment variables are always uppercase. You can always see how a particular ...
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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.