Red Hat NETSCAPE MANAGEMENT SYSTEM 6.0 - CUSTOMIZATION Instrukcja Użytkownika Pobierz pdf (Strona 246)

234 You Are Here

[billy@localhost /]$ cd etc

[billy@localhost /etc]$ ls

Here, among other type of ﬁles and directories, we’ll ﬁnd conﬁguration ﬁles,whichareﬁles that help

make programs work for our system, store our program and system settings and more.

Among the directories in here, you’ll see /etc/X11, which also contains directories and conﬁgura-

tion ﬁles for the X Window System.

In the directory /etc/skel,you’ll ﬁnd skeleton user ﬁles, which are used to populate newly created

user accounts with standard, commonly used ﬁles.

That sounds a little gothic, perhaps, but here’s what it means. When we were logged in as root, one

of our ﬁrst tasks was to create an account for ourselves.

When our user account was created, ﬁles were taken from /etc/skel and placed into the new

account. These ﬁles helped to “ﬂesh out” the account (skeleton. . . ﬂesh... getit?).

Let’s look around a little in /usr. From our current location in /etc/skel, we can type:

[billy@localhost /skel]$ cd /usr

[billy@localhost /usr]$ ls

In /usr,we’re going to ﬁnd a number of directories which hold some of our system’s most important

programs, and ﬁles (see Figure 16.10).

In /usr/man we’ll ﬁnd the system manual pages; other documentation which isn’t covered by man

pages will be found in /usr/doc.

In /usr/X11R6,we’ll ﬁnd ﬁles related to the X Window System, including conﬁguration and docu-

mentation ﬁles.

Although we may think of something more literary when we hear the word “libraries,” in /usr/lib

we’ll ﬁnd ﬁles which are considered libraries for our system. In this context, libraries are ﬁles con-

taining commonly-used snippets of code which can be shared by many programs.

Red Hat Linux uses the RPM (the Red Hat Package Manager) technology of software installation

and upgrades. Using RPM, either from the shell prompt or through GnoRPM, is both a safe and

convenient way to upgrade or install software.

(For more on using GnoRPM, see its chapter in the Red Hat Linux Installation Guide.)

However, once you become more comfortable with your system, there may be times when you’ll

want to install software that may not be available in RPM format. To minimize collisions with RPM-

managed ﬁles, the best place to put such software is in /usr/local.

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Red Hat NETSCAPE MANAGEMENT SYSTEM 6.0 - CUSTOMIZATION Instrukcja Użytkownika Strona 246