#!/bin/sh
# iconv_gui for www.linuxquestions.org 20060319
if [ -z "${TMP}" -o  ! -d "${TMP}" -o ! -w "${TMP}" ]; then exit 127; fi
if [ -d "${TMP}" -a ! -d "${TMP}/iconv_out" ]; then mkdir "${TMP}/iconv_out"; fi
convList=($(iconv --list | tr -d ",\/\/"|egrep -v "(^(The.f|not.n|the.F|listed.w)|[[:blank:]])"))
if [ -x "${#convList[@]}" ]; then exit 1; fi
convFrom=$(zenity --width=400 --title="Iconv-GUI: select \"From\" charset:" --list --column=" ${convList[@]}" --separator=" " 2>/dev/null)
if [ -x "${convFrom}" ]; then exit 1; fi
convTo=$(zenity --width=400 --title="Iconv-GUI: select \"to\" charset:" --list --column=" ${convList[@]}" --separator=" " 2>/dev/null)
if [ -x "${convTo}" ]; then exit 1; fi
zenity --width=600 --title="Iconv-GUI: select files:" --file-selection --multiple --separator="\n" | while read l; do
if [ -f "${l}" ]; then convOut="${TMP}/iconv_out/$(basename "${l}")"; if [ ! -f "${convOut}" ]; then 
iconv -f ${convFrom} -t ${convTo} "${l}" > "${convOut}"; fi; fi; done; exit 0

#!/bin/bash

# Read the list of iconv's supported encodings into an array.
# iconv nicely reconfigures its output when its not going to a terminal, so this is easy
# mapfile requires bash v.4+, otherwise use a while+read loop.
# the second line resets the array without the trailing slashes on each entry
mapfile -t convList < <( iconv --list )
convList=( "${convList[@]%%//}" )

[[ -z ${convList[@]} ]] && echo 'No iconv encodings detected. Exiting.' && exit 1

# Pop up a zenity dialog requesting the input encoding, and save the selected value.
convFrom=$( zenity --width=400 --title='Iconv-GUI: select the "From" charset:' --list --column="${convList[@]}" --separator=' ' 2>/dev/null )

[[ -z $convFrom ]] && echo 'No input encoding selected. Exiting.' && exit 1

# Do the same for the output encoding.
convTo=$( zenity --width=400 --title='Iconv-GUI: select the "to" charset:' --list --column="${convList[@]}" --separator=' ' 2>/dev/null )

[[ -z $convTo ]] && echo 'No output encoding selected. Exiting.' && exit 1

# Request the location of the output directory.
outDir=$( zenity --width=600 --title='Iconv-GUI: select output directory:' --file-selection --directory )

[[ ! -w $outDir ]] && echo "$outDir: Directory isn't writable.  Exiting." && exit 1

# Confirm the settings on the command line.
echo "All selected files will be converted from $convFrom to $convTo."
echo "The converted files will be placed in $outDir."

# Pop up a file selector dialog, and loop over the files selected,
# ( Filenames are delimited with newlines; zenity
# ( apparently doesn't support null separators )
echo 'Select files to process.'

while IFS='' read -r fname; do

    if [[ -r $fname ]]; then

        convOut="$outDir/${fname##*/}"

        if [[ -f $convOut ]]; then
            echo "Output file $convOut already exists.  Skipping."
            continue
        fi

        # Do some simple checking for non-text files.  This is far from perfect.
        if [[ $( file -b "$fname" ) != *text* ]]; then
 
            zenity --width=600 --title='Iconv-GUI: WARNING:' \
            --question --text "[WARNING] $file: May be a binary file.  Convert it anyway? [WARNING]"

            (( $? = 1 )) && echo "$fname: Skipping this file." && continue

        fi

        # if the above tests pass, we can now convert the file
        # with //TRANSLIT it will attempt to substitute unsupported characters
        # with similar ones that are supported.

        iconv -f "$convFrom" -t "$convTo//TRANSLIT" "$fname" > "$convOut"

        if (( $? > 0 )); then
            echo "$fname: [WARNING!] Conversion unsuccessful. [WARNING!]"
        else
            echo "$fname: Conversion successful."
        fi

    else

        echo "$fname: Not a readable file.  Skipping."

    fi

done < <( zenity --width=600 --title='Iconv-GUI: select files:' --file-selection --multiple --separator='\n' )

exit 0

/home/dreamtraveler/Desktop/Subs/1: line 75: unexpected EOF while looking for matching `"'
     /home/dreamtraveler/Desktop/Subs/1: line 78: syntax error: unexpected end of file

[[ ! -w $outDir ]] && echo "$outDir: Directory isn't writable.  Exiting." && exit 1
                                                        ^––This apostrophe terminated the single quoted string!

convTo=$( zenity --width=400 --title='Iconv-GUI: select the "to" charset:" --list --column=" ${convList[@]}" --separator=" " 2>/dev/null )