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Computer Science · all questions

UNIX
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Which of the following option is used for checking if the file is readable or not?

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awk makes a distinction between numeric and string variables.

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Which symbol is used for matching a single character?

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Which option is preferred while killing a process using SIGKILL signal (9)?

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Which option is used with tr command for deleting characters?

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For recursive compression, zip uses -r option.

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If we create a file using cat command with the same filename which already exists in the current directory then,

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It is essential to use whitespaces when we use [].

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For comm command to work properly, files specified should be sorted.

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What is the default delimiter used by the cut command for cutting fields?

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We can delete multiple files using a single rm command.

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How can we copy an entire directory under another directory?

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-v option is used with cp command for displaying . . . . . . . .

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Which of the following symbols are a set of ERE (extended regular expressions)?

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perl is . . . . . . . . of grep, tr, sed and awk.

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For repeating the character search , and ; are used.

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Which character is used to replace 'ugo' string in chmod command?

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Which editor is used by the UNIX system to edit files?

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Which of the following attribute is not shown by ps command?

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Which of the following is not a built-in variable used by awk?

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