Users on Linux system

Question

Hi,
I need to modify the .bashrc files of Linux from Java code to add a directory to $PATH.
My problem is that in Linux every user directory has a .bashrc file, to modify all the files from the code, I need to find out all the existing users of the system. How do I do this ? Please help.
best wishes and thanks
Issac

Answer 1

1) Say cat /etc/passwd to see a list of all users with their home directory, login shell etc.
2) However there is the system-wide startup file /etc/profile.
An excerpt from the output of "man bash":
When bash is invoked as an interactive login shell,
or a non-interactive shell with the --login option,
it first attempts to read and execute commands from /etc/profile
and ~/.profile, in that order.
The --noprofile option may be used to inhibit this behavior.3) You could encounter problems with the access rights. Normally a non-root user will not be able to fiddle with other users' profiles - nor with /etc/profile.