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Computer Science · all questions

UNIX
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A process is said to be . . . . . . . . when it starts its execution.

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. . . . . . . . option is used with df command for displaying the total amount of disk space in the file system.

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Which of the following option is used with find command for taking action on selected files?

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To split the screen into multiple windows, we can use . . . . . . . . command.

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substr function is also used to alter an existing string.

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Which of the following system call uses file descriptor as an argument?

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What is the windowing system of UNIX known as?

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What does the following command do?
cancel prl-320

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If a variable is undefined, its value is . . . . . . . .

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What is the symbolic constant for errno 2?

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. . . . . . . . command displays all the variables available in the current shell.

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Which command is used for running jobs in the background?

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Redirection is a process of switching of the standard stream of data.

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Device files are used by the kernel for operating the device.

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Which of the following symbols are used for accessing previous commands by event numbers?

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Command substitution is enabled in single quotes also.

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What is the output of who command?

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For adding a new user to the system, we have to use . . . . . . . . command.

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print statement is necessary for printing a line.

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. . . . . . . . searches for a first instance of a pattern in the backward direction.

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