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Question No.71
In the vi editor, how can commands such as moving the cursor or copying lines into the buffer be issued multiple times or applied to multiple rows?
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By using the command :repeat followed by the number and the command.
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By specifying the number right in front of a command such as 4l or 2yj.
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By selecting all affected lines using the shift and cursor keys before applying the command.
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By issuing a command such as :set repetition=4 which repeats every subsequentcommand 4 times.
Correct Answer: B
Question No.72
When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?
A. |
-10 |
B. |
0 |
C. |
10 |
D. |
20 |
Correct Answer: C
Question No.73
In the vi editor, which of the following commands will copy the current line into the vi buffer?
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c
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cc
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1c
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yy
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1y
Correct Answer: D
Question No.74
Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file?
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fmt -f 1,4 /etc/passwd
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split -c 1,4 /etc/passwd
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cut -d : -f 1,4 /etc/passwd
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paste -f 1,4 /etc/passwd
Correct Answer: C
Question No.75
The /etc/ file lists currently mounted devices.
Correct Answer: mtab
Question No.76
A user accidentally created the subdirectory \dir in his home directory. Which of the following commands will remove that directory?
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rmdir #39;~/\dir#39;
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rmdir quot;~/\dirquot;
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rmdir ~/#39;dir#39;
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rmdir ~/\dir
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rmdir ~/\\dir
Correct Answer: E
Question No.77
Which shell command is used to continue background execution of a suspended command?
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amp;
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bg
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cont
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exec
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:amp;
Correct Answer: B
Question No.78
Which command displays a list of all background tasks running in the current shell? (Specify ONLY the command without any path or parameters.)
Correct Answer: jobs
Question No.79
Which of the following shell redirections will write standard output and standard error output to a file named filename?
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2gt;amp;1 gt;filename
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gt;filename 2gt;amp;1
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1gt;amp;2gt;filename
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gt;gt;filename
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1amp;2gt;filename
Correct Answer: B
Question No.80
What does the ? symbol within regular expressions represent?
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Match the preceding qualifier one or more times.
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Match the preceding qualifier zero or more times.
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Match the preceding qualifier zero or one times.
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Match a literal ?character.
Correct Answer: C
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