week 2

Question 1

How do you enter “insert mode” in vim?

Answer 1

i

Question 2

How to exit vim?

Answer 2

:q

Question 3

how to save file in vim

Answer 3

:w

Question 4

Journalling

Answer 4

ext3/4 file system can recover from a power outage by writing both data and metadata to a journal

Question 5

writeback

Answer 5

disables journaling for regular user data in order to speed up performance

Question 6

REPL

Answer 6

Read Evaluate Print Loop

Question 7

/bin

Answer 7

Contains binary files which contain essential built in commands like ls

Question 8

/boot

Answer 8

contains all files that linux uses to boot

Question 9

/dev

Answer 9

Holds the files that represent your physical devices

Question 10

/etc

Answer 10

Contains config files, config files stored here affects all users

Question 11

/home

Answer 11

contains user files for each user

Question 12

/lib

Answer 12

contains libraries that programs need to use

Question 13

/media

Answer 13

usb drives and cd-roms are stored here

Question 14

/mnt

Answer 14

mounting point for other olders or drives

Question 15

/opt

Answer 15

contains supplementary software for your computer that isn’t managed by package management tool for your distro

Question 16

/proc

Answer 16

holds processes/files containing system data allowing linux to communicate with them

Question 17

/root

Answer 17

/home folder but for the root user

Question 18

/sbin

Answer 18

contains binary files but only the root user can use them

Question 19

/usr

Answer 19

files in here are shared among different users

Question 20

/var

Answer 20

contains system information that is stored there as it runs

Question 21

What’s the difference between symbolic links and hard links?

Answer 21

hard links is a direct pointer to the data on the disk while symbolic links is a pointer to a different file link