I’ve written a fan control script in Lua, and I’m running Linux. The fan control needs to write to /sys/ so I need to be super user.
I want to inform the user if they are NOT super user. What’s the best way to go about doing this?
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I’ve written a fan control script in Lua, and I’m running Linux. The fan control needs to write to /sys/ so I need to be super user.
I want to inform the user if they are NOT super user. What’s the best way to go about doing this?
The only certain test is to check whether the POSIX geteuid() call returns zero.
For this you may have to use a Lua library like luaposix.
Or you can shell out and run
id -uto see if it outputs0.