题目内容

Which of the following are graphical browsers used in Linux? Select all answers that apply.

A. lynx
B. Mozilla Firefox
C. Konqueror
D. Google Chrome

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Which command checks whether a host is online?

A. ping
B. route
C. traceroute
D. netstat

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In an if statement, the ____ operator is used with a name as argument to check if it exists and is a directory.

A. -e
B. -d
C. -f
D. -s

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Which of the following are correct conditional options that can be used to test for file attributes? Select all answers that apply.

A. -e
B. -z
C. -d
D. -r

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Which of the following statements can be used to compare two strings? Select all answers that apply.

A. if [ $STR1 == $STR2 ] ; then echo match found ; fi
B. if [ $STR1 -eq $STR2 ] ; then echo match found ; fi
C. if [[ $STR1 = $STR2 ]] ; then echo match found ; fi
D. All of the above

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Which of the following are graphical browsers used in Linux? Select all answers that apply.

A. lynx B. Mozilla Firefox C. Konqueror D. Google Chrome

Which command checks whether a host is online?

In an if statement, the ____ operator is used with a name as argument to check if it exists and is a directory.

Which of the following are correct conditional options that can be used to test for file attributes? Select all answers that apply.

Which of the following statements can be used to compare two strings? Select all answers that apply.

A. lynx
B. Mozilla Firefox
C. Konqueror
D. Google Chrome