Day - 2 | Linux Folder Structure Explained | Free Linux Course

Summary

Key Points

• The video introduces the fundamental Linux folder structure, explaining the purpose and significance of various directories within the file system. 0:12
• The command line prompt provides crucial information, including the logged-in user (e.g., root or ubuntu) and the present working directory, with / representing the root of the file system. 7:13
• The /home directory contains individual home directories for regular users (e.g., /home/ubuntu), while the root user's home directory is uniquely located at /root. 11:55
• Linux distinguishes between administrative commands in /sbin (system binaries) and non-administrative commands in /bin (user binaries), allowing for granular permission management. 22:42
• The /usr directory serves as the primary location for user-related programs and data, containing subdirectories like /usr/bin, /usr/sbin, and /usr/lib, with /bin and /sbin often being symbolic links to these. 27:21
• The /opt directory is designated for installing third-party or custom applications and dependencies, providing a standardized location for software not part of the core system. 30:43
• Temporary files that are not meant for permanent storage are placed in the /tmp directory, which is periodically cleared by the system. 41:08
• The /var directory is primarily used for variable data, most notably system and application log files, which grow over time and are essential for monitoring and troubleshooting. 41:40
• The /etc directory is crucial for storing system-wide configuration files, similar to settings on a device, which control the behavior and setup of the Linux system. 44:39
• The Linux system executes commands by searching through directories listed in the PATH environment variable, eliminating the need to specify the full path for commonly used binaries. 49:20