Which command is used by the user to change their login password in Unix?

Unix - Quiz(MCQ)

man

reset

passwd

Correct Answer : passwd

Explanation : Since UNIX is a multiuser system, it requires a password from every user who wants to log in to the system to help ensure that all the data and files of the user are secure from hackers and errant users. A user can simply change his/her login password by using the passwd command. Simply type this command on the terminal and then enter the old password, which after successful verification would allow the user to input a new password for his login.

Recently Updated in Unix Questions

Which command is used for acquiring superuser status?

super

admn

Correct Answer : su

Explanation : Any user can acquire the status of superuser by using the su command. The only condition that needs to be fulfilled here is, he/she must be aware of the root password. For example,

$ su
Password: *****        //root’s password
#pwd
/home/abd             //prompt changes ( super user mode)â€‹

Which command is used to find out the consumption of a specific directory?

mem

Correct Answer : du

Explanation : Sometimes, we may need to find out the consumption of a specific directory rather than an entire file system. For this purpose, du command is used. This command reports usage by recursive examination of the directory structure.

To run the script, we should make it executable first by using _____

chmod +r

chmod +w

chmod +x

chmod +rwx

Correct Answer : chmod +x

Explanation : Before we run the script, it is essential to make the script executable first. After that invoke the script name to run the script. For making the script executable, we have to use chmod +x script_name.