Automation & Scripting

Question 1

What is shorthand for ‘then’ ?

Answer 1

&&

Question 2

What is shorthand for ‘else’?

Answer 2

||

Question 3

What is libvirt

Answer 3

VM management software: API library, daemon and commands virt-install, virsh

Question 4

How do you run multiple commands in the same line

Answer 4

Use a semi colon between each one
command ; command

Question 5

What signal does CTRL-C send

Answer 5

SIGINT
(-2)

Question 6

What signal does CTRL-Z send

Answer 6

SIGTSTOP
(-17)
(Stop -pauses)

Question 7

How to start a shell process and let it continue even if you exit the shell

Answer 7

nohup
Will write output ~/nohup.out

Question 8

How to restart a stopped job?

Answer 8

bg JOB#
or
fg JOB#

Question 9

What does ‘atq’ do?

Answer 9

Displays a list of the pending ‘at’ jobs

Question 10

Where is the Git configuration?
(2 places)

Answer 10

Global is in ~/.gitconfig
Locally /WORKDIR/.git/config

View ‘git config —list’

Question 11

Configure your Git remote repository …

Answer 11

git remote add origin URL

Then check status with ‘git remote v’

Question 12

Push your project to the remote repository

Answer 12

git push -u origin main

Question 13

What’s the difference between ‘git pull’ and ‘git clone’?

Answer 13

‘pull’ just fetches the most recent files
‘clone’ copied the entire project.

Question 14

How do you ‘pull’ down new project files from the remote repository?

Answer 14

git remote add origin URL
git pull -u origin main

Question 15

Create a lightweight Git tag

Answer 15

git tag TAGNAME

Question 16

Create an annotated Git tag

Answer 16

git tag -a TAGNAME -m “COMMENT”

Question 17

Transfer project files from working to staging

Answer 17

git add FILE/S
Add all files with “git add . “

Question 18

Transfer files from staging to repository

Answer 18

git commit FILES

Question 19

3 bootstrapping tools

Answer 19

anaconda-ks.cfg (rhel)
system-config-kickstart (Ub)
AutoYaST (Suse)

Question 20

What does ksvalidator do?

Answer 20

Helps to find syntax issues in kickstart files (still recommend a team review too tho)

Question 21

Define “build automation”

Answer 21

Config management and policy as code is used to automatically deploy or create containers

Question 22

What is “automated config management?”

Answer 22

The process of entering the config management and policy as code into an orchestration utility’s API.

Question 23

What “syntax markers “ do each of terraform, Ansible, Puppet and Chef use

Answer 23

Terraform - open{ and = and “ , messy
Ansible - : And tabbed indent yaml
Puppet - =>=>=> nice and tidy
Chef - similar to Ansible less: some =>

Question 24

Discard changes in Working directory

Answer 24

git checkout HEAD filename

Question 25

Unstage changes in staging area

Answer 25

git reset HEAD filename

Question 26

Reset to a previous commit

Answer 26

git reset FIRST7ofSha

Question 27

Temporarily ‘stash’ your current code

Answer 27

git stash
Get it back with
git stash pop

Question 28

Update commit with some minor changes, but want to keep the log tidy so doesn’t need a while fresh commit:

Answer 28

git commit —amend
If you don’t need to change the message than as —no-edit