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Computer Science · all questions

UNIX
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Using 'e' command we can . . . . . . . .

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file command identifies the file type by examining the magic number of the file.

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. . . . . . . . section can be used if we've to print something after processing the last line.

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case statement should have a corresponding closing esac.

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Which of the following is not true about tee command?

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Which option is used to produce multi columnar output in diff command?

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Which one of the following option is used for checking that the string is NULL string?

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If we wish to delete a remove a file forcefully, we can use . . . . . . . . option with rm command.

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Which of the following undo a most recent single editing change?

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The segment representing the constants, globals and static variables is called:

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We can redirect the error message to file named newfile using . . . . . . . . command.

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Which of the following command doesn't accept a filename as an argument?

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Which of the following is an invalid variable?

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Shell variables are of . . . . . . . . types.

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What is the significance of errno 13?

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Which command is used for removing/deleting files in UNIX?

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When multiple filenames are used with vi, we can switch to next file using . . . . . . . . command.

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Which option is used with sort command to specify the field delimiter?

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perl also supports use of for loop in the following manner.
for(i<3;$i++){ }

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In how many categories are links divided?

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