Software :: Setting Group ID For Executable File Working Under Solaris?

why do I get "Permission denied"?

Code:
[andreas@loony /tmp]$ ls -al
total 40
drwxrwxrwt 4 root root 4096 Jul 14 10:28 .
drwxr-xr-x 28 root root 4096 May 18 10:55 ..

[Code]....

A colleague told me that this does not work for shell scripts (even though apparently it does work for shell scripts under Solaris). However, this is not the problem per se, because I discovered this problem when using a binary program that needs the s-bit feature. I only made the small shell script to make sure that I understand everything that is going on and that it is not the binary program that is behaving badly... but I do believe that the problem is not in the program but in the operating system.

Set uid works. It is only set gid that does not work. That is, setting the s-bit for the owner works, but setting the s-bit for the group does not.