Where is the typical location for source code on a Linux system?

• A. /src
• B. /usr/src
• C. /var/src
• D. /opt/src

Answer: (B)

Source code on Linux systems is typically kept in /usr/src. This follows the Filesystem Hierarchy Standard, which designates /usr/src as the place for source trees such as the kernel source. The kernel tree is usually found as /usr/src/linux-, or similar naming, and you install a kernel-source package to obtain it. Other locations like /src, /var/src, or /opt/src aren’t standard repositories for development sources; /src isn’t part of the standard layout, /var is for variable data, and /opt is for optional applications rather than the primary place for source trees.