TAILIEUCHUNG - Module Linux essentials - Module 11: Managing packages and processes

Module 11 help students understanding where data is stored. After studying this chapter students should be able to: Understanding kernel and processes; logging utilities such as syslog, klog, and dmesg; information storage paths. Inviting you to refer. | Module 11 Managing Packages and Processes Exam Objective Where Data is Stored Objective Summary Understanding kernel and processes Logging utilities such as syslog, klog, and dmesg Information Storage Paths Working with Package Management Package Management Package management is a system for installing, configuring, updating, querying and removing software from a Linux system. Package management systems ensure that software functions by tracking prerequisites or dependencies between packages. There are many different package management systems available, but two dominate the Linux landscape: Debian Package Management RPM Package Management Debian Package Management Used by the Debian distribution and its popular derivatives such as Ubuntu and Mint. A software package is distributed as a ".deb" file, which contains the files and meta-information for the package. The lowest level tool (back-end command) is dpkg Command line front-end tools include: apt-get aptitude GUI front-end tools include: synaptic software-center Adding Packages (Debian) To ensure your list of packages is current, first execute: sudo apt-cache update To search for a package, you can use: sudo apt-cache search keyword To install a package, run: sudo apt-get install package Due to dependencies, if you want to install one package, you may have to install other packages, too. Updating Packages (Debian) If you want to update an individual package, then you perform the command that will install that package: sudo apt-get install package If you want to update all packages, then you can execute: sudo apt-get upgrade Users with a graphical login may notice update notifications from the update-manager Removing Packages (Debian) Due to dependencies between packages, if you want to remove one package of software, then you may end up having to remove other packages as well. If you want to remove all files from a software package except the configuration files, then you can execute: sudo apt-get remove .

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• Linux essentials
• Module Linux essentials
• Managing packages
• Managing processes
• Debian package management
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• Linux essentials chapters
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