加拿大华人论坛 美国华人新闻Where user and group information stored
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User names and primary groups are stored in /etc/passwd. This file can be directly edited using the 'vi' editor, although this is not recommended. Format of the file is...User name (normally all lower case)Password (encrypted - only contains the letter 'x')User ID (a unique number of each user)Primary Group IDComment (Normally the person's full name)Home directory (normally /home/<user name>Default shell (normally /bin/bash)Each field is separated by a colon.Passwords for each user are stored in /etc/shadow. This file should only be changed using the passwd command.Group information is stored in /etc/group. This file can be directly edited using the 'vi' editor. Format of the file is...Group nameGroup password (hardly ever used)Group IDUser names (separated by commas)Each field is separated by a colon.Default filesWhen a new user is created, the default files and directories that are created are stored in /etc/skel.This directory can be modified to fit your needs. Modifications only effect new users and does not change anything for existing users.
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