Linux adduser command needs --home Dir option

New account with “adduser user”

After ssh into root@ipAddress, I tried to create a new user account as “Initial Server Setup with Ubuntu 14.04” suggested. The new account was created, but with some anomalies:

1. No “user@hostname” in the shell prompt
2. No /home/user directory
3. No /bin/bash shown in /etc/passwd
4. Unable to “deluser user”

For example,

after “adduser leon” and login as leon: $ id uid=1000(leon) gid=1000(leon) groups=1000(leon),27(sudo) $ grep -i leon /etc/passwd leon:x:1000:1000::/home/leon: $ su root root@Leon-Ubuntu:/# deluser leon Removing user leon' ... Warning: group leon’ has no more members. userdel: user leon is currently used by process 2060 /usr/sbin/deluser: `/usr/sbin/userdel leon’ returned error code 8. Exiting.

Then I tried the “–home Dir” option

and it works well.

root@Leon-Ubuntu:/# adduser --home /home/leon2 leon2 root@Leon-Ubuntu:/# grep -i leon /etc/passwd leon:x:1000:1000::/home/leon: leon2:x:1001:1001:,:/home/leon2:/bin/bash root@Leon-Ubuntu:/# ls /home/ leon2 root@Leon-Ubuntu:/# deluser leon2 Removing user leon2' ... Warning: group leon2’ has no more members. Done.

Is there an explanation about this?