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Computer Science · all questions

UNIX
practice.

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To override the default action and catch the signal . . . . . . . . system call is used.

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We can move back to the previous file using . . . . . . . . command.

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Which option is used for counting the number of words in a file only?

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To create a new window, . . . . . . . . can be used.

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Which command is used for computation and string handling?

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User’s environment mode created using su – is terminated using . . . . . . . .

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To write selected lines, . . . . . . . . is used with sed.

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The root directory is represented by . . . . . . . .

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Which of the following is used for storing the number of positional parameters?

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The environment variables are available in . . . . . . . .

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Which of the following command is incorrect?

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To suppress the behavior of 'p' command of sed, we use . . . . . . . . option.

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

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The access to the use of at and batch is restricted and controlled by . . . . . . . . and . . . . . . . .

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The . . . . . . . . prefix to an array name signifies the last index of the array.

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. . . . . . . . command is used for creating a new group.

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What is the prompt for system administrator?

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Which of the following keywords are used in while loop?

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Which one of the following command will change our primary prompt from $ to C>?

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By default, sort command reorders lines in ASCII collating sequence.

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