`$BASH_LINENO` – Line Numbers of Function Calls

$BASH_LINENO is an array and contains the line numbers, where a function defined in $FUNCNAME was invoked.

$LINENO contains the line number of the currently executing command.

Examples

Display execution position

a() {
  local i=$((${#FUNCNAME} - 1))
  cat << EOF
  file: ${BASH_SOURCE[i+1]}
  function: ${FUNCNAME[i]}
  executed at: ${BASH_LINENO[i]}
EOF
}
  
a

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