How to determine function name from inside a function

Question

If I have a Bash script like:

#!/bin/bash

f() {
  # echo function name, \"f\" in this case
}

Is there any way to do this? This could be us

Answer 1

The simplest way to get the function name (from inside a function) is dependent on which shell you are using:

Zsh version

someFunctionName() {
   echo $funcstack[1]
}

Bash version

someFunctionName() {
   echo ${FUNCNAME[0]}
}

Both

someFunctionName() {
  currentShell=$(ps -p $$ | awk "NR==2" | awk '{ print $4 }' | tr -d '-')
  if [[ $currentShell == 'bash' ]]; then
    echo ${FUNCNAME[0]}
  elif [[ $currentShell == 'zsh' ]]; then
    echo $funcstack[1]
  fi
}