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41
Which of the following command is used for switching files?
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Answer: Option A
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42
. . . . . . . . command is used for sorting a file on specified fields.
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Answer: Option B
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43
The interval regular expression uses the character . . . . . . . .
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Answer: Option C
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44
Which part of the UNIX operating system interacts with the hardware?
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Answer: Option A
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45
Which function is used by perl for reversing a string?
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Answer: Option B
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46
On a UNIX system, there can be . . . . . . . . shells running simultaneously.
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Answer: Option C
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47
test command can be used to check which of the following?
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Answer: Option D
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48
Which command is used to reverse the direction of repeating the search?
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Answer: Option B
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49
For searching a character, . . . . . . . . and . . . . . . . . are used.
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Answer: Option A
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50
What are the permission of file01 after executing this command?
chmod  777  file01
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Answer: Option A
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