Package Managers

Question 1

What is the yum command to look for software?

Answer 1

yum search

i.e yum search http

Question 2

What is the yum command to get information about a software package?

Answer 2

yum info

i.e yum info httpd

Question 3

What is the yum command to get installed software?

Answer 3

yum list installed

i.e yum list installed wireshark

Question 4

What is the yum command to get the dependencies for a package?

Answer 4

yum deplist

i.e yum deplist

Question 5

What is the yum command to remove software?

Answer 5

yum remove

i. e yum remove httpd
* leaves behind dependencies

Question 6

What is the yum command to remove software including dependencies no longer subsequently needed?

Answer 6

yum autoremove

i.e yum autoremove httpd

Question 7

What is the command to show the full path of a shell command?

Answer 7

which

i.e which tshark

Question 8

What is the yum command to get a list of repositories being used by the system?

Answer 8

yum repolist

Question 9

On red hat based systems, where is repository information saved?

Answer 9

/etc/yum.repos.d

Multiple repo files

Question 10

What is the command to clean up the local yum database of packages?

Answer 10

yum clean all

Question 11

What is the yum command to update the system?

Answer 11

yum update

Question 12

What is the rpm command to install a package?

Answer 12

rpm -i

-v verbose -h progress bar

Question 13

What is the rpm command to query a package?

Answer 13

rpm -q

-i info

Question 14

What is the format convention for rpm packages?

Answer 14

packagename-version.architecture

i.e plexmediaserver-1.13.9.5456-ecd600442.x86_64.rpm

Question 15

What is the rpm command to see what files an rpm installs?

Answer 15

rpm -ql

Question 16

What is the rpm command to see the documentation of an rpm?

Answer 16

rpm -qd

*lists documentation and man page files

Question 17

What is the rpm command to see the dependencies of an rpm?

Answer 17

rpm -qR

*requires

Question 18

What is the rpm command to query an uninstalled package?

Answer 18

rpm -qp

-p path

Question 19

What is the rpm command to update an existing package?

Answer 19

rpm -U

*updates installed package with newer rpm download

Question 20

What is the rpm command to remove an rpm package?

Answer 20

rpm -e

*erase

Question 21

What is the rpm command to check for errors when removing an rpm package?

Answer 21

rpm -e –test

Question 22

On debian based systems, where is repository information saved?

Answer 22

/etc/apt/sources.list

single file listing repositories

Question 23

What is the apt command to update the cache for a list of available packages?

Answer 23

apt update

Question 24

What is the apt command to search for a package?

Answer 24

apt search

apt-cache search

Question 25

What is the apt command to install a package?

Answer 25

apt install

Question 26

What is the apt command to remove a package?

Answer 26

apt remove

Question 27

What is the apt command to remove a package including configuration files?

Answer 27

apt remove --purge

Question 28

What is the apt command to remove a package including dependencies?

Answer 28

apt autoremove | apt autoremove *remove all unneeded dependencies

Question 29

What is the apt command to update existing packages on the system?

Answer 29

apt upgrade

Question 30

What is the rpm command to list installed packages?

Answer 30

rpm -qa

Question 31

What is the apt command to update the important system packages including removing unneeded dependencies ?

Answer 31

apt full-upgrade

Question 32

What is the dpkg command to list installed packages?

Answer 32

dpkg --get-selections | -l

Question 33

What is the dpkg command to query an uninstalled package?

Answer 33

dpkg-deb -I

Question 34

What is the dpkg command to see what files a package installs?

Answer 34

dpkg-deb --contents

Question 35

What is the dpkg command to install a package?

Answer 35

dpkg -i

Question 36

What is the command to install dependencies flagged by a failed dpkg install?

Answer 36

apt update *pull down info on dependencies requested by .deb apt -f upgrade

Question 37

What the dpkg command to remove a package?

Answer 37

dpkg -r

Question 38

What is the dpkg command to remove a package including configuration files?

Answer 38

dpkg -P | *purge