lesson 2

Question 1

what is the command to change a password ?

Answer 1

passwd userid

Question 2

in which file can you see all the existing users in a linux machine ?

Answer 2

/etc/passwd

Question 3

in which file can you see all the groups created on a linux machine ?

Answer 3

/etc/group

Question 4

what are the two paths to navigate a filesystem in Linux?

Answer 4

• absolute path : always begin with a / this means it starts from the root directory eg cd /var/log/secure
• relative path : Does not begin with a / eg cd /var cd log cd secure

Question 5

what are the different ways to create a file in Linux?

Answer 5

touch, cp , vi,

Question 6

what is the command used to find a file or directory ?

Answer 6

find command

Question 7

what is an inode (index node) in Linux ?

Answer 7

a number that points to a file on a hard disk

Question 8

what is the command to view the inode of your files?

Answer 8

ls -li

Question 9

what is the difference between a soft link and a hard link ?

Answer 9

in a soft link, if the original file is removed or renamed, the link is removed as well. In a hard link, deleting or renaming the original file will not affect the hard link

Question 10

what is the command to create a hard link and soft link ?

Answer 10

• ln for hard link
• ln -s for soft link

Question 11

lab