Which is the core of the operating system?

• • shell

• kernal

• command

• script

Which among the following interacts directly with system hardware?

• • Shell

• command

• Kernal

• Applications

Which command is used to display the operating system name

• OS

• Unix

• Kernal

• uname

Which command is used to display the unix version

• • uname -r

• • uname -n

• • uname -t

• • kernel

Which option of ls command used to view file inode number

• -l

• -a

• -i

• -o

Which option of rm command is used to remove a directory with all its sub directories

• -b

• -o

• -p

• -r

Which of the following commands will allow the user to search contents of a file for a particular pattern

When mv f1 f2 is executed which file’s inode is freed?

Which command sets up shorthand for command or command line?

• set

• alias

• new

• echo

Which command prints the directory stack?

• cd

• push

• mkdir

• dirs

Answer explanation

dir represents the directiory structure and dirs is been used by stack only