$FUNCNAME  –  Function Call Stack

$FUNCNAME contains the names of shell functions on the execution call stack.

The name of the currently executed function is ${FUNCNAME[0]}, the name of the calling function is ${FUNCNAME[1]} and so on.

The element with the highest index has value main. This value is representing the entry-point of a shell script file. It’s unavailable if a function is executed inside an interactive shell, for example.

Links

• Bash manual on $FUNCNAME

Examples

Print the function call stack with $FUNCNAME

1 2 3

function nested() { echo "Function call stack:" "${FUNCNAME[@]}"; } function topLevel() { nested; } topLevel

Output:

1	Function call stack: nested topLevel main