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Computer Science · all questions

UNIX
practice.

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For changing the time stamps, . . . . . . . . system call is invoked.

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. . . . . . . . is known as range operator.

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Environment variables control the behavior of the system.

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awk supports the use of arrays.

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To copy multiple files, the last destination file should be a directory.

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Which option is used with find command for specifying the file type?

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Which of the following is not an internal command used by mailx?

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he expression cut -c -3 emp.lst will cut columns number . . . . . . . .

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awk uses . . . . . . . . and . . . . . . . . as comparison operators.

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Consider the following commands.
$ sed -n '1,2p' emp.lst
!p' emp.lst
The output of both commands will be the same.

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To insert text into a file, . . . . . . . . mode is used.

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The collection of memory locations that the process can access is called . . . . . . . .

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What is the login name of system administrator?

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Suppose ABD_DIR is a local variable. Then it will be accessible to the child process.

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Suppose x =10, then what will be the value of x?

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Which of the following is a built-in function for awk?

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Which option is used with the head command to specify line count to display?

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until loop operates with a reverse logic as used in while loop.

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To test whether perl is in your PATH, use . . . . . . . .

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shutdown command is used by the administrator for shutting down the system.

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