GDB
GDB (GNU Debugger) is a command-line debugger for programs written in languages like C, C++, and Fortran, primarily used on Unix-like systems. It allows developers to inspect and control the execution of a program, set breakpoints, examine variables, and analyze memory to diagnose bugs and crashes. As part of the GNU Project, it is open-source and widely integrated into development workflows for low-level debugging.
Developers should learn GDB when working on system-level software, embedded systems, or performance-critical applications where understanding memory management and execution flow is essential. It is particularly valuable for debugging segmentation faults, memory leaks, and concurrency issues in C/C++ projects, as it provides fine-grained control over program execution without relying on graphical interfaces.