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Computer Science · all questions

UNIX
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Which of the following is not a special parameter used by the shell?

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The UNIX shell is both . . . . . . . . and . . . . . . . . language.

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Sometimes it is not possible to copy a file.

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Which command is used to change the group owner of the file?

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Which of the following system call is more powerful (in waiting mechanism) than wait system call?

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vi editor has . . . . . . . . named buffers.

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. . . . . . . . option is used with a test for checking if the file exists and has the size greater than zero.

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Double quotes are more permissive than single quotes and allow the evaluation of the $ and ` itself.

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Which one of the following is used for looping with a list?

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Which one of the following commands will be used to delete all the instances of string 'manager' in file003?

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System time comprises . . . . . . . . components.

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Which of the following is not true about UNIX?

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One of the most important features of vi editor is . . . . . . . .

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Which command is used by the user to change their login password in UNIX?

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S_IFxxx macros are used for checking the file types.

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ex mode is used for what purpose?

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For customizing vi, which of the following command is used?

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Which option is used by vi editor to open a file in read mode only?

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If we want to link files across the file systems, we have to use only soft links.

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Both exit and _exit system call share an identical syntax.

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