Which column contains all details of the permissions of a file when you issue the ls -l command?

Unix - Quiz(MCQ)

first

second

third

fourth

Correct Answer : first

Explanation : root@server [~]# ls -l .... -rw------- 1 root root 37 Dec 31 2009 .my.cnf -rw------- 1 root root 737 Aug 18 21:20 .mysql_history -rw-r--r-- 1 root root 264 Aug 18 16:51 .pearrc ....

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.