Config files in /etc

Config files are plain text files.

/etc/passwd: The Password File

root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/bin/bash
daemon:x:2:2:Daemon:/sbin:/bin/bash
lp:x:4:7:Printing daemon:/var/spool/lpd:/bin/bash
mail:x:8:12:Mailer daemon:/var/spool/clientmqueue:/bin/false
.
.

felix:x:500:100:Felix Gers:/home/felix:/bin/bash

/etc/inittab: Scanned by init process once on bootup.

/etc/crontab: List of periodic jobs read by crond.