Practice Pakistan's most useful MCQs for competitive exams

While working with mail command, which command is used to save mail in a separate file ?

• (A)  s
• (B)  r
• (C)  w
• (D)  d

Answer

Submitted By :Ali Uppal

The File that contains a set of instructions which are performed when a user logs in, is_____________?

• (A)  .exrc
• (B)  .profile
• (C)  .autoexec
• (D)  autoexec.bat

Answer

Submitted By :Ali Uppal

Which command is used to display the characteristics of a process ?

• (A)  pid
• (B)  du
• (C)  ps
• (D)  au

Answer

Submitted By :Ali Uppal

Which command is used to display the end of the file ?

• (A)  head – r
• (B)  tail
• (C)  eof
• (D)  bof

Answer

Submitted By :Ali Uppal

Which of the following command addresses all users who are currently hooked on ?

• (A)  write
• (B)  mail
• (C)  wall
• (D)  mesg

Answer

Submitted By :Ali Uppal

Which command is used to sort the lines of data in a file in alphabetical order ?

• (A)  sort
• (B)  sh
• (C)  st
• (D)  sort -r

Answer

Submitted By :Ali Uppal

The agency that sits between the user and the UNIX system is called the________________?

• (A)  logic
• (B)  profile
• (C)  shell
• (D)  erxc

Answer

Submitted By :Ali Uppal

Which of the following commands is used to change the working directory ?

• (A)  cd
• (B)  changedir
• (C)  chdir
• (D)  cdir

Answer

Submitted By :Ali Uppal

Which of the following commands is used to display the filenames in multiple columns ?

• (A)  ls
• (B)  ls -1
• (C)  ls -x
• (D)  lc

Answer

Submitted By :Ali Uppal

The octal representation 652 indicates_________________?

• (A)  Execute permission for the owner
• (B)  Write permission for others
• (C)  Read and write permission of groups
• (D)  All of the above

Answer

Submitted By :Ali Uppal