This article walks through the most important files and subdirectories under /etc—such as /etc/profile, /etc/bashrc, user‑specific .bash_* files, /etc/motd, /etc/issue, shadow‑password utilities, fstab and rc.local—explaining when they are executed, what they configure, and how they affect system behavior.
This guide explains the role of the /etc/init.d directory in embedded Linux, walks through common startup scripts such as rcS, rcK, and service-specific files, and provides detailed code examples and command‑line options to help developers understand, customize, and troubleshoot system initialization and shutdown processes.
This guide explains three methods to automatically execute scripts after a Linux system boots—using the traditional /etc/rc.local approach, the @reboot option in crontab, and creating a dedicated Systemd service—providing step‑by‑step commands and examples for each technique.
This guide shows three reliable ways to run custom scripts automatically after a Linux machine boots—by editing /etc/rc.local, using a crontab @reboot entry, or creating a dedicated systemd service—along with example commands and advanced timing options.
