Tag: operating systems

Questions Related to operating systems

Apply the Percentage format with no decimal places
technology operating systems

  1. CTRL+SHIFT+$

  2. CTRL+SHIFT+#

  3. CTRL+SHIFT+%

  4. CTRL+SHIFT+@

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Correct Option: C

Apply the Date format with the day, month, and year
technology operating systems

  1. CTRL+SHIFT+@

  2. CTRL+SHIFT+!

  3. CTRL+SHIFT+$

  4. CTRL+SHIFT+#

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Correct Option: D

Apply the Time format with the hour and minute, and AM or PM
technology operating systems

  1. CTRL+SHIFT+%

  2. CTRL+SHIFT+@

  3. CTRL+SHIFT+!

  4. CTRL+SHIFT+$

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Correct Option: A

Apply the Number format with two decimal places, thousands separator, and minus sign (–) for negative values
technology operating systems

  1. CTRL+SHIFT+!

  2. CTRL+SHIFT+$

  3. CTRL+SHIFT+@

  4. CTRL+SHIFT+%

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Correct Option: A

I have a script named test.sh and the contents are as follows: $ cat test.sh echo hi rm -f test.sh echo hi ######## What will be the output of the following comand: $ sh test.sh
technology operating systems

  1. the first 'hi' will be displayed but it will say "Could not delete file: in use" and will exit the script

  2. the first 'hi' will be displayed but it will say "Could not delete file: in use" and will then echo the second 'hi'

  3. The script will display 2 'hi' and the file will also be deleted

  4. The first 'hi' will be displayed, the script will be deleted , but the 2nd 'hi' will not be displayed.

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Correct Option: C

I have a file named "-p" in my home directory. Which of the following commands will be used to delete this file?
technology operating systems

  1. rm -p

  2. rm -f -p

  3. rm -f -- -p

  4. rm -f "-p"

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Correct Option: C

I want to change the date of my linux server to 'Mon Nov 23 18:08:07 IST 2009'. Which of the following commands wil help?(ignore the seconds in the date)
technology operating systems

  1. a) date 1123180809

  2. b) date 2311180809

  3. c) date -s "Mon Nov 23 18:08:07 IST 2009"

  4. d) Both a and c

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Correct Option: D

A script is executing since last 10 minutes and is expected to take another 10 minutes. So I decide to send it to background. Which of the following steps will do it?
technology operating systems

  1. Press Ctrl-Z and type "bg"

  2. Press Ctrl-D and type "bg"

  3. Open a new termial and type "bg " where is the pid of that script

  4. None of these

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Correct Option: A

I want to send a file as an attachment to my mailserver from my unix server using mailx. Which of the following will help me create the file as attachment?
technology operating systems

  1. uuencode coomand

  2. attach command

  3. compress command

  4. Its not possilble to send attachment from unix

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Correct Option: A

What is the output of the following command in bash shell on Linux? $ i=2 $ [ $i -lt 2 ] || echo great
technology operating systems

  1. great

  2. no output

  3. test: syntax error

  4. we will have to export the value of i

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Correct Option: A