Tag: unix

Questions Related to unix

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










unix





    

  1. 

    logic
    

    2. 

  2. 

    profile
    

    3. 

  3. 

    shell
    

    4. 

  4. 

    erxc
    

    5. 










 Show answer












Correct Option: C
















Which of the following commands is used to update access and modification times of a file?








unix





    

  1. 

    grep
    

    2. 

  2. 

    wc
    

    3. 

  3. 

    touch
    

    4. 

  4. 

    cat
    

    5. 










 Show answer












Correct Option: C













Which command is used to count just the number of characters in a file?









unix





    

  1. 

    wc - 1
    

    2. 

  2. 

    wc -c
    

    3. 

  3. 

    wc -w
    

    4. 

  4. 

    wc -r
    

    5. 










 Show answer












Correct Option: B
















Which of the following commands is used to list contents of directories?









unix





    

  1. 

    ls
    

    2. 

  2. 

    lp
    

    3. 

  3. 

    dir
    

    4. 

  4. 

    tar
    

    5. 










 Show answer












Correct Option: A













Which command is used to display a file contents in octal form?








unix





    

  1. 

    cd
    

    2. 

  2. 

    od
    

    3. 

  3. 

    of
    

    4. 

  4. 

    oct
    

    5. 










 Show answer












Correct Option: B













Which command will be used with vi editor to insert text to left of cursor?









unix





    

  1. 

    s
    

    2. 

  2. 

    S
    

    3. 

  3. 

    a
    

    4. 

  4. 

    i
    

    5. 










 Show answer












Correct Option: D













In vi editor, forward search is performed using the command.









unix





    

  1. 

    :pat
    

    2. 

  2. 

    :pat
    

    3. 

  3. 

    /pat
    

    4. 

  4. 

    All of the above
    

    5. 










 Show answer












Correct Option: D













Which of the following special shell variables is used to process number of the last background job?









unix





    

  1. 

    $!
    

    2. 

  2. 

    $#
    

    3. 

  3. 

    $0
    

    4. 

  4. 

    $*
    

    5. 










 Show answer












Correct Option: A
















Which option will be used with ps command to slow the entire command line of the process being run?









unix





    

  1. 

    -4
    

    2. 

  2. 

    -f
    

    3. 

  3. 

    -1
    

    4. 

  4. 

    -5
    

    5. 










 Show answer












Correct Option: B













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








unix





    

  1. 

    write
    

    2. 

  2. 

    mail
    

    3. 

  3. 

    wall
    

    4. 

  4. 

    mesg
    

    5. 










 Show answer












Correct Option: C