Linux Academy 6

Front 1

Nano

Back 1

Is a text based file editor that is available for editing text based configuration files within a command line of linux server.

Front 2

yum

Back 2

Is a package manager and is the primary command for most text modes.

Front 3

yum remove (name of application)

Back 3

Command that removes an already existing application.

Front 4

which

Back 4

Is a utility which actually looks for an application to see if it is already installed. Verification tool.

Front 5

RPM

Back 5

is a program for installing, uninstalling, and managing software packages in Linux. RPM was developed on the basis of the Linux Standard Base (LSB).

Front 6

rpm -i

Back 6

Command to install a package to program.

Front 7

Flags used

Back 7

-i : is used to install name of specified package

-h: is used to show the progress of an application/ rpm file as it is being installed.

-v: is for verbose, to verbosely see information rather than just getting a command prompt.

Front 8

rpm -ihv (filename)

Back 8

Command for a more elaborate install with much more detail information about the install of files/ applications.

Front 9

rpm -q (filename)

Back 9

-q is another flag used to "query" to find out package's true file name.

Front 10

Output interpretation:

nano-2.2.6-1.x86_64

Back 10

nano: stands for the name of package and what it is.

2.2.6: is the version number of package.

-1. : is the build number of version.

x86_64: is the the type of architecture that file is for.

Front 11

rpm -qi (filename)

Back 11

Command is similar to the "query" flag but much more detailed in listing...

-name

-version

-release date

-architecture

-install date of installed package.

-group

-etc

Front 12

rpm -e (filename)

Back 12

Command to uninstall the name of package specified.

(You would have to verify with "which" command to ensure file has been deleted.)

Front 13

rpm -qpR (filename)

Back 13

-q : Query a package
-p : List capabilities this package provides.

-R :Lists capabilities on which this package depends.

Hint 13

Let’s say you would like to do a dependency check before installing or upgrading a package. For example, use the following command to check the dependencies of BitTorrent-5.2.2-1-Python2.4.noarch.rpm package. It will display the list of dependencies of package.

Front 14

YUM

Back 14

(Yellowdog Updater Modified)

Is an open source command-line as well as graphical based package management tool for RPM (RedHat Package Manager) based Linux systems.

Hint 14

It allows users and system administrator to easily install, update, remove or search software packages on a systems.

Front 15

cd /etc/ yum.repos.d/

Back 15

Changing directories to etc (is where config files are saved to when installing a package)

yum folder in etc which opens the repos filed under yum.

Hint 15

Unlike apt-get that has 1 config file for all the repos, yum uses separate files to place config files.

Front 16

vi Centos -Base.repo -(filename)

Back 16

Very similar to apt-get

Basically lists...

-name of source list that repo is at

-base url where it's going to contact at

-adding/editing files are possible

Hint 16

Opens text editor

Front 17

yum update

Back 17

to update repos (source list of files) and packages.

Front 18

yum search (file/app name)

Back 18

Command for searching packages.

Front 19

HTTPD

Back 19

Package for Apache2 for a CentOS or Red Hat Enterprise System.

Front 20

yum check update (package)

Back 20

Command to see a particular update that needs updating.

Front 21

yum upgrade

Back 21

Command to upgrade ALL packages that might be available.

Hint 21

Lists any packages that are marked for any updates that might be needed.

Front 22

yum deplist (packages)

Back 22

Command to see dependencies required for specific package. Shows all dependencies that the package needs so in the update, if package does not have all dependencies ready then yum would have installed them.

Front 23

yum remove (package)

Back 23

Command to remove specified package.

Front 24

yum clean packages

Back 24

Command that would clean/remove unnecessary packages that have been installed taking up necessary space needed kept in files.

Front 25

yum clean all

Back 25

Command that will remove anything that is temporary file from any packages that we may have deleted.

Front 26

man yum

man apt-get

man dpkg

Back 26

Manuals that gives you all the necessary flags and options within powerful tools to keep both linux distros as well as installed apps upto date.