call stack

In this blog post, we'll delve into the use of the FUNCNAME array in Bash, an incredibly useful tool for accessing the call stack of functions. By the end of this article, you'll understand how to utilize FUNCNAME to debug and manage function call hierarchies effectively. Q1: What is the FUNCNAME array in Bash? A1: FUNCNAME is a Bash shell array that holds the names of all functions currently in the execution call stack. The element at index 0 is the name of the currently executing function, with the rest of the array containing the names of the functions that had invoked this function, thus showing the entire call hierarchy.