Convert a file to UTF-8 charset

tee /usr/local/bin/charconv2utf8.sh <<EOF
#!/bin/bash 

if ! command -v uchardet &> /dev/null
then
    echo "uchardet could not be found"
    exit
fi

if [[ $# -eq 0 ]]
then
	echo "Syntax: $0 path/to/file"
        exit 1
else
	p=$1
fi

test -f $p || echo "File $p not found" 
test -f $p || exit 1

f=$(basename $p)

cd $(dirname $p)

# skip if it's newer than 1 minute (just in case a ftp download is not terminated)
find . -maxdepth 1 -mmin +1 -name "${f}" | grep "${f}" > /dev/null

if [[ $? -ne 0 ]]
then
        echo "The file ${f} is too recent"
        exit 
fi

# if already UTF-8 skips 
uchardet ${f} | grep -i UTF-8 > /dev/null

if [[ $? -eq 0 ]]
then
        echo "The file ${f} is already UTF-8"
        exit
fi

# detect and check from-encoding 
enc=$(uchardet ${f})
iconv -l | grep -i $enc 
if [[ $? -ne 0 ]]
then
        echo "Source file encoding '${enc}' not found"
        exit 1
fi

# proceed to convert to UTF-8 
echo "Proceeding to convert ${f} from ${enc} to utf-8"
iconv -f ${enc} -t UTF-8  ${f} > ${f}.new
mv ${f}.new ${f}

EOF
chmod +x  /usr/local/bin/charconv2utf8.sh