converts all ISO-8859 files to UTF-8

iso2utf8.sh

#!/bin/bash

function convert(){

  ENCODING=$(file "$1" |awk '{print$2}')
  if [[ "$ENCODING" = "ISO-8859" ]]; then
    iconv -f iso-8859-15 -t utf-8 "$1" > tmp.file
    mv tmp.file "$1"
    rm tmp.file
  fi

}

export -f convert

find . -type f -exec bash -c 'convert $1 "{}"' \;