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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