Question

Given my directory dir and my file dir/file owned by me, which permissions allow me to access and change the content (data) in the file dir/file but not delete the file?

Answer 1

Given my directory dir and my file dir/file owned by me, permissions that  allow me to access and change the content (data) in the file dir/file but not delete the file is

644

the explanation of the permission will look like this

Owner or User - Read & Write  permission

Group - Read only permission

Other or Everyone - Read only permission

implementation

to change the permission of the file we can write

chmod 755 myfile.h   // file name myfile.h

This changes the permission of the file (myfile.h) and sets the permission to 755.

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