This document discusses Linux software installation, including compiling from source code and using pre-compiled binary packages. It covers the different formats software can be distributed in, such as source code and binary packages. It also describes common tools used for software installation, such as gcc, make, rpm, deb, and yum. The document provides instructions for compiling from source and installing binary packages on Linux systems.

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Linux Essenciais and System Administration

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Key Knowledge Areas
Use Source form
Use Binary form
Install, upgrade and uninstall binary packages.
Linux software installation
Linux software installation
Terms and Utilities
compiling
gcc
make
./configure
rpm
deb
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Linux software installation
Software is delivered in one of two manners:
•Source form
requires compiling
•Binary form
generally wrapped up in a package
Delivery formats
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Both formats have advantages and disadvantages
•Compiling from source can provide higher performing machine code.
It gives option of selecting features and configurations available at compile time.
•Pre-compiled software is easier - alleviates the (possible) headaches of compiling,
If distributed in a package format, provides built-in management functionality.

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Linux software installation
Compiling from source can be tricky.
1st
: Development tools and packages must be installed most importantly:
gcc and make.
•gcc: GNU C Compiler.
The de facto compiler for open source software.
•make: GNU Make.
Development tool which uses rules-based configuration syntax to determine and run all of
necessary commands needed to build a software project.
Compiling
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Basic steps for compiling a software package:
•Download the source tarball
•cd into the extracted directory
•Read the INSTALL and/or README file, follow directions
•./configure
•make
•make install

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Linux software installation
Installing a software package is straight forward.
There are a few different package formats. The two most popular are:
•rpm: Redhat Package Manager
•deb: Debian package
Both have similar functionality and capability.
Learning the command syntax is about all that is needed for proficiency.
packages
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Linux software installation
RPM’s provide full software packaging features:
•pre-install scripts, post-install scripts,
•dependencies, meta information,
•an installed software database, etc
RPM system maintains a database of all installed software on a machine
- useful for tracking and update, dependency verification and software managem.
RPM
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rpm Redhat Package Manager tool.
interface to RPM system, performing queries, installs, upgrades, uninstalls and general
database maintenance operations.
-i: install given package; -q: query database; -e: erase given package from system
yum Yellowdog Updater Modified.
•Supports package installation over the network through repositories.
•RPM backend
•Simple interface
View Slides: 101-2.4b Use Debian package management and 101-2.5 Use RPM and YUM package management

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Fim de sessão
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