January 2018
Intermediate to advanced
456 pages
12h 49m
English
Content preview from Embedded Linux Development Using Yocto Project Cookbook - Second Edition
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Getting ready
User information is stored in the /etc/passwd file, a text file that is used as a database for the system user's information. The passwd file is human-readable.
Each line in it corresponds to one user in the system, and it has the following format:
<username>:<password>:<uid>:<gid>:<comment>:<home directory>:<login shell>
Let's see each of the parameters of this format:
- username: A unique string that identifies the user at login
- uid: User ID, a number that Linux uses to identify the user
- gid: Group ID, a number that Linux uses to identify the user's primary group
- comment: Comma-separated values that describe the account, typically the user's contact details
- home directory: Path to the user's home directory
- login shell: Shell ...
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