The first line in any shell script begins with?

Which command is used to create a child shell?

Which control unlocks the keyboard? 

Which of the following is the login name of the system administrator in UNIX?

Which command creates a empty file if the file does not exists in directory.

Which command is used for unzipping files which are compressed using zip command? 

For moving two levels up in the file hierarchy system using the cd command, which symbol is used to separate the two periods (..) ?

What does the pwd command do in Linux?

The correct syntax of the find command is:

What does the command $ cp abd/ .user_06 do?