pecial usage regarding file permission.  can you modify the permission by using OCTAL number?

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter8: Arrays And Strings
Section: Chapter Questions
Problem 6PE
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Part 2

OCTAL numbers have special usage regarding file permission. 

can you modify the permission by using OCTAL number?

 

Assuming current working directory is 

"/home/test1/Exam1" and "rwxrw _r_ _" is the file 

permission setting of "Hello.java" .

Remove the execution permission from the owner and add write permission to the other users in the other group

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