Which of the following commands is used to display the directory attributes rather than its contents?

Which of the following files will displayed by this command cat ch

The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:

If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use

Which of the following is not a communication command.

Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?

Which command is used to remove a file?

Which symbol is used to separate more than one command in the same command line?