Tag: operating systems

Questions Related to operating systems

What does the command ls do?

  1. isplay of the contents of a file

  2. Shows a calendar

  3. Display of files and folders, present in the folder where you are

  4. Opening a file


Correct Option: C
  1. command < file

  2. command >> file

  3. command << file

  4. command <> file


Correct Option: B
  1. pico filename

  2. cat filename

  3. more filename

  4. touch filename


Correct Option: D
  1. mcells

  2. fragments

  3. inodes table

  4. cylinder group


Correct Option: C
  1. execute a remote command

  2. log in and initiate a shell on a remote system

  3. This is a restricted shell on HP-UX.

  4. grant read-only access to a system


Correct Option: C

Which shell does not have history feature?

  1. Bourne shell

  2. Korn shell

  3. C shell

  4. POSIX shell


Correct Option: A
  1. history

  2. $HOME/.history

  3. $HOME/.sh_history

  4. /etc/history


Correct Option: C
  1. echo $HOME

  2. echo "$HOME"

  3. echo HOME

  4. echo $HOME


Correct Option: A