Linux MCQs with answers Page - 76

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Q. Which variable tells you the history number of the current command?

  • (A) HISTCTRL
  • (B) HISTNUM
  • (C) HISTCMD
  • (D) HISTORY

A

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Q. To put the date in the prompt, which string would you add?

  • (A) d
  • (B) /D
  • (C) /d
  • (D) D

A

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Q. Given the following commands, which directory will the user be taken to, assuming that there is a Jason directory off each one?
debian:~# CDPATH=/documents:/shared:/music
debian:~# cd Jason

  • (A) ~/Jason
  • (B) /music/Jason
  • (C) /shared/Jason
  • (D) /documents/Jason

A

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Q. Which set option will keep you from accidentally overwriting an existing file with file redirection?

  • (A) nonuke
  • (B) noklobber
  • (C) noclobber
  • (D) nowrite

A

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Q. Which parameter is used to enable an option with set?

  • (A) -o
  • (B) +o
  • (C) -s
  • (D) +s

A

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Q. Which test parameter returns true if a string is 0 bytes long?

  • (A) -0
  • (B) -s
  • (C) -n
  • (D) -z

A

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Q. Which scripting clause matches a string to a pattern?

  • (A) while loop
  • (B) for loop
  • (C) if/else
  • (D) case

A

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Q. Which command moves five lines of text into a vi buffer named a?

  • (A) “add5
  • (B) “a5dd
  • (C) A5dd
  • (D) a5dd

A

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Q. Which metacharacter matches any single character?

  • (A) ,
  • (B) *
  • (C) ?
  • (D) .

A

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Q. Which variable sets the mail check time to be every 10 minutes?

  • (A) MAILCHECK=600
  • (B) MAILCHECK=10
  • (C) MAIL=600
  • (D) MAIL=10

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