performs a relational integer test tests for a nonzero string length true if a f

Question

performs a relational integer test tests for a nonzero string length true if a file exists true if a file exists and is a regular file compares the first file in the argument with the second file to determine if the first file is newer true if a file exists and can be read true if a file exists and its size is greater than zero logical AND logical negation A. -a B. ! C. -r D. -f E. -ne F. -n G. -nt H. -s I. -e
Which option is right answer for this
performs a relational integer test tests for a nonzero string length true if a file exists true if a file exists and is a regular file compares the first file in the argument with the second file to determine if the first file is newer true if a file exists and can be read true if a file exists and its size is greater than zero logical AND logical negation A. -a B. ! C. -r D. -f E. -ne F. -n G. -nt H. -s I. -e
Which option is right answer for this
performs a relational integer test tests for a nonzero string length true if a file exists true if a file exists and is a regular file compares the first file in the argument with the second file to determine if the first file is newer true if a file exists and can be read true if a file exists and its size is greater than zero logical AND logical negation A. -a B. ! C. -r D. -f E. -ne F. -n G. -nt H. -s I. -e
Which option is right answer for this

Explanation / Answer

-ne performs a relational integer test

In the above example relational integer test means relational operator test with integers. So the – ne represents not equal it represents relational operator used for two numerical values.

Ans     E.   -ne

  -n tests for a nonzero string length

This option is used for character test if the string contains characters or not

This file operation it will check mentioned file is existing or not irrespective of type of file.

Ans : I. -e

-f true if a file exists and is a regular file

This is file operation will true if mentioned file is exist and regular file

Ans: D.       -f

-r true if a file exists and can be read

This is also file operation it is true if the file is exist and open the file in reading mode. Otherwise it is false

Ans C. -r

         

-s true if a file exists and its size is greater than zero

          It will check the file is exist or not and also check is it contains the data i.e is it greater than 0

Ans H.        -s

! logical negation

This is logical not operator it will check for negative conditions of given expresson

Ans B.   !

-a Logical AND

It is and operator it will check logical operation and

Ans –a

I am not sure about the last option

compares the first file in the argument with the second file to determine if the first file is newer

G.           -nt

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