Description: Bash signals are notifications sent to processes to control their behavior. These signals allow users and operating systems to manage program execution, facilitating communication between processes and event handling. Each signal has a specific purpose, such as stopping, restarting, or terminating a process. Signals are fundamental in system administration, as they enable administrators and users to interact with running processes efficiently. In the context of Bash, which is a widely used command interpreter in Unix-like systems, signals can be sent manually or automatically and can be intercepted or handled by the receiving processes. This means that a process can define how to respond to certain signals, providing an additional level of control over its behavior. Signals are an essential feature of the shell, as they allow for dynamic process management and contribute to the stability and efficiency of the operating system. In many Unix-like systems, signal handling is crucial for package management and script execution, highlighting its importance in development and production environments.