Tag: operating systems

Questions Related to operating systems

What does the command ls do?

technology operating systems

  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

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Correct Option: C

How can you append the output of a command to a file?
technology operating systems

  1. command < file

  2. command >> file

  3. command << file

  4. command <> file

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Correct Option: B

How to create a new file without opening it?
technology operating systems

  1. pico filename

  2. cat filename

  3. more filename

  4. touch filename

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Correct Option: D

With what command you can see your user name?
technology operating systems

  1. pwd

  2. me

  3. i

  4. whoami

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Correct Option: D

With what command you can see what folder you are in?
technology operating systems

  1. whereami

  2. place

  3. pwd

  4. trace

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Correct Option: C

Which structure is found inside journal file system?

technology operating systems

  1. mcells

  2. fragments

  3. inodes table

  4. cylinder group

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Correct Option: C

The rsh command on HP-UX can be used to:

technology operating systems

  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

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Correct Option: C

Which shell does not have history feature?
technology operating systems

  1. Bourne shell

  2. Korn shell

  3. C shell

  4. POSIX shell

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Correct Option: A

What is the default history file in the HP-UX POSIX shell?
technology operating systems

  1. history

  2. $HOME/.history

  3. $HOME/.sh_history

  4. /etc/history

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Correct Option: C

Which command displays the value of the HOME variable?
technology operating systems

  1. echo $HOME

  2. echo "$HOME"

  3. echo HOME

  4. echo $HOME

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Correct Option: A