fxxx

#!/bin/bash

# Display individual directories of colon-delimited variable (e.g. $PATH, etc)

fxxx_func()
{
  if [[ -z $1 ]]; then
    local nx0=$(basename "$0")
    echo "Format: $nx0  varname  \"varvalue\"   [x]"
    echo "  E.g.  $nx0  PATH     \"\$PATH\"     [x]"
    echo "  \$3, if non-blank, suppresses blank line at start"
    return
  fi

  if [[ -z $3 ]]; then echo ""; fi

  echo "${1}="
  echo ""

  if [[ -n $2 ]]; then

    while IFS=':' read -ra arDIRS; do
      for dir in "${arDIRS[@]}"; do
        if [[ -n $dir ]]; then
          echo "  ${dir}"
        fi
      done
    done <<< "${2}"

    echo ""

  fi
}

fxxx_func "$1" "$2" "$3"