how to get the username

[a.atalla]

i need the user name to use in my application
i couldnot found the function that returns the user-name  in linux

[theo]

GetEnvironmentVariable('USER');         

[typo]

GetEnvironmentVariable('USERNAME');   

[a.atalla]

GetEnvironmentVariable('USER');         

that works ,but now my application will run with root priviliage so that function will return "root"  as the user name
is there any way i can list all the computer users "not only the current user" ?

[theo]

What do you want to achieve?
Sounds like you don't know yourself ;-)

http://forum.lazarus.freepascal.org/index.php/topic,9770.msg48175.html#msg48175

[a.atalla]

GetEnvironmentVariable('USER');         
this one was what i'm looking for but now i need another thing

my application will run on the user machine with root privilege ,and it will do some admin stuff on other users account ,so i need to know what the other users that use the computer

i wish that is clear

does the post u linked belongs to my question?

[theo]

does the post u linked belongs to my question?

Yes.

[Laksen]

It's easy.

Take a look at the users unit in the users fpc package. It contains everything you need. GetUserList, and GetUserData combined with FpGetuid from baseunix sounds like what you want

That's ofcourse a very unix specific unit