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How to find the name of a function in Bash?
An array variable containing the names of all shell functions currently in the execution call stack. The element with index 0 is the name of any currently-executing shell function. The bottom-most element (the one with the highest index) is “main”. This variable exists only when a shell function is executing.
How to find the caller function in Stack Overflow?
You can find the entire stack trace using browser specific code. The good thing is someone already made it; here is the project code on GitHub. But not all the news is good: It is really slow to get the stack trace so be careful (read this for more). You will need to define function names for the stack trace to be legible.
When to use funcname instead of func name in Bash?
When bash arrays are accessed without an index the first element of the array will be returned, so $FUNCNAME will work in simple cases to provide the name of the immediately current function, but it also contains all other functions in the call stack.
How to find out the caller function in chrome?
This is how it looks in Chrome: Just drop the debugger where you want to investigate the stack. I usually use (new Error ()).stack in Chrome. The nice thing is that this also gives you the line numbers where the caller called the function.
How to create dynamic variable names in Bash?
If you can’t use associative arrays (e.g., you must support bash 3), you can use declare to create dynamic variable names: and use indirect parameter expansion to access the value. See BashFAQ: Indirection – Evaluating indirect/reference variables.
How to store the name of a variable in Bash?
You can simply store the name of the variable in an indirection variable, not unlike a C pointer. Bash then has a syntax for reading the aliased variable: $ {!name} expands to the value of the variable whose name is the value of the variable name. You can think of it as a two-stage expansion: $ {!name} expands to $var_37, which expands to lolilol.
When do you execute a function in Bash?
Commands between the curly braces are executed whenever the function is called in the shell script. The function definition must be placed before any calls to the function. When using single line “compacted” functions, a semicolon ; must follow the last command in the function.
What’s the syntax for creating a function in Bash?
There are two different syntaxes for declaring bash functions. The following syntax is the most common used way of creating bash functions: function_name () { commands } The second less commonly used of creating bash functions starts with the reserved work function followed by the function name as follows: