/ hi group,

/ i created a output file from a C program and changed / its(the executables) permissions using chmod to / rwsr_xr_x(i.e.,4755).Then i logged in as a normal user / and then ran the executable.Now how could i find out / whether the user id changes to that of root id on / execution of that executable.

RTFM man getuid, geteuid

--yogesh