Shell Varialbles are ?

How many prompts are available in a UNIX system and what it is ?

What option can you use with the Unix "ls" command to display file attributes?

This is the command used for finding the free disk space for all filesystems

Which command shows network status

The diff command only works with input files that are text files

This command displays the current environment or sets the environment for the execution of a command

This Reexecutes a Previously Entered Command

f command is the same as finger command

What is the output of the following command in an empty directory touch -c Filethtdoesntexist.txt

What is the output of the following echo My && echo little || echo world

The command 'id' displays user's

To cut the selected it we normally use Ctrl + X .What is the alternative shortcut for this ?

Alternative option for Ctrl + C (Copy selected item).

Alternative option for Ctrl + V (Paste)

Winkey + D will bring desktop to the top of other windows.We can also do this with...

we use winkey to bring start up menu (Start in the task bar).Another way is there.What is that?

When did the first ANSI programming language standard come out ?

Which of the following is not a Standards issuing body ?

List in chronological order, when these languages became officially recognised as a standard i. ANSI C ii. ANSI COMMON LISP iii. ANSI Cobol iv. ANSI ADA