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Computer Science · all questions

UNIX
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Multiple directories can be removed using single rmdir command.

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Which of the following functions can be performed using signal system call?

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To add elements to the left side of the array . . . . . . . . function is used.

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Which of the following shell doesn't support the command substitution using $ recommended by POSIX?

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. . . . . . . . option is used with paste command if we want to specify our own delimiter.

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Which one of the following command will be used for adding two spaces before every line in emp.lst?

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To save the editing performed on a file, we have to switch to . . . . . . . . mode

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Which one of the following command will shutdown and reboot the system?

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Some attributes of every process are maintained by the kernel in memory in a separate structure called the . . . . . . . .

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What are Commands?

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To know the exit status of a command, we can use . . . . . . . .

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Which command is used to insert text before the current cursor location?

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Which of the following operators are used for logical execution?

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Which option is used for reading an awk program from a file?

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-n option is used with cp command for what purpose?

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For restoring the contents of numbered buffers efficiently, . . . . . . . . command is used.

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Which of the following commands let us perform a set of instructions repeatedly?

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Which command is used for translating characters?

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In how many broad categories, files are divided into UNIX?

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The . . . . . . . . option in case statement matches any option not matched by the previous options.

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