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>Overview of a Linux System</TITLE
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>Chapter 2. Overview of a Linux System</H1
><DIV
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><DL
><DT
><B
>Table of Contents</B
></DT
><DT
>2.1. <A
HREF="various-parts.html"
>Various parts of an operating system</A
></DT
><DT
>2.2. <A
HREF="kernel-parts.html"
>Important parts of the kernel</A
></DT
><DT
>2.3. <A
HREF="major-services.html"
>Major services in a UNIX system</A
></DT
><DD
><DL
><DT
>2.3.1. <A
HREF="major-services.html#INIT"
><B
CLASS="COMMAND"
>init</B
></A
></DT
><DT
>2.3.2. <A
HREF="major-services.html#TERMINAL-LOGINS"
>Logins from terminals</A
></DT
><DT
>2.3.3. <A
HREF="major-services.html#SYSLOG"
>Syslog</A
></DT
><DT
>2.3.4. <A
HREF="major-services.html#CRON"
>Periodic command execution: <B
CLASS="COMMAND"
>cron</B
> and
<B
CLASS="COMMAND"
>at</B
></A
></DT
><DT
>2.3.5. <A
HREF="major-services.html#GUI"
>Graphical user interface</A
></DT
><DT
>2.3.6. <A
HREF="major-services.html#NETWORKING"
>Networking</A
></DT
><DT
>2.3.7. <A
HREF="major-services.html#NETWORK-LOGINS"
>Network logins</A
></DT
><DT
>2.3.8. <A
HREF="major-services.html#NFS"
>Network file systems</A
></DT
><DT
>2.3.9. <A
HREF="major-services.html#MAIL"
>Mail</A
></DT
><DT
>2.3.10. <A
HREF="major-services.html#PRINTING"
>Printing</A
></DT
><DT
>2.3.11. <A
HREF="major-services.html#FS-LAYOUT"
>The filesystem layout</A
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><BLOCKQUOTE
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>"God saw everything that he
had made, and saw that it was very good. "</SPAN
> -- Bible
King James Version. Genesis 1:31</P
></BLOCKQUOTE
><P
>This chapter gives an overview of a Linux system. First,
the major services provided by the operating system are described.
Then, the programs that implement these services are described
with a considerable lack of detail. The purpose of this chapter
is to give an understanding of the system as a whole, so that
each part is described in detail elsewhere.</P
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