How do I set the home directory in Linux?

You can use the usermod command to change the default home directory for a user. What this command does is edit the file /etc/passwd. Opening /etc/passwd you will find there is a line for every user, including system users (mysql, posftix, etc), with seven fields per line denoted by colons.

How do I find my home path in Linux?

To find the home directory for user FOO on a UNIX-ish system, use ~FOO . For the current user, use ~ . The userdir prefix (e.g., ‘/home’ or ‘/export/home’) could be a configuration item. Then the app can append the arbitrary user name to that path.