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Describe how to handle signals and traps in shell scripts.



Handling signals and traps in shell scripts allows you to respond to specific events or interruptions that occur during script execution. Signals are notifications sent to a process to indicate events such as a termination request or a user interrupt. Traps, on the other hand, are mechanisms used to capture and handle signals within a shell script. Let's explore how signals and traps can be utilized in shell scripting: 1. Understanding Signals: Signals are represented by numbers and have unique meanings. Some commonly used signals in shell scripting are: * SIGINT (2): Generated when the user interrupts a process using Ctrl+C. * SIGTERM (15): Sent to request the termination of a process gracefully. * SIGHUP (1): Sent when a terminal session is disconnected or closed. A complete list of signals can be found by running the `kill -l` command in the shell. 2. Han....

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