An ugly script to rename Rom files

This is a bash script to rename snaps (screenshots/previews)  to the corresponding ROM file. it easier than tediously doing it manually.

Be warned! It may be buggy. I basically got it to the state where it would read the snaps and the ROMs. You can go back/forward in the ROM list, and skip back/forward by 10 in the snaps list. It displays one ROM and 10 snaps, you choose from the list which one to rename by typing a number from 1 to 10.

I'd strongly suggest running this against a copy of your snaps directory, and only copying it over once you verify the images are correct.





#!/bin/bash
#rename the file, then increment the lists?

#Neo Geo
Filename_Array=(/Roms/NeoGeo/roms/*)
RenamingThese_Array=(/Roms/NeoGeo/snaps/*)

##variables
#counters
Filename_Start=0
Rename_Start=0

skip_amount=10
array_end=$[${#RenamingThese_Array[@]} -$skip_amount]

function rename_files(){
echo
echo ----Original Rom File ----
echo ${Filename_Array[Filename_Start]}
echo

IFS="^"
a=$Rename_Start
b=$[Rename_Start+1]
c=$[Rename_Start+2]

d=$[Rename_Start+3]
e=$[Rename_Start+4]
f=$[Rename_Start+5]

g=$[Rename_Start+6]
h=$[Rename_Start+7]
i=$[Rename_Start+8]

j=$[Rename_Start+9]

names=(
${RenamingThese_Array[a]}
${RenamingThese_Array[b]}
${RenamingThese_Array[c]}

${RenamingThese_Array[d]}
${RenamingThese_Array[e]}
${RenamingThese_Array[f]}

${RenamingThese_Array[g]}
${RenamingThese_Array[h]}
${RenamingThese_Array[i]}

${RenamingThese_Array[j]}
next5 back5 previous_rom skip_5_roms)
echo ----Rename File ----
echo Press any other key to skip renaming the image file

PS3="Choose an image file (1-$skip_amount) to rename:"

select varname in ${names[*]}; do
   if [[ -n "$varname" ]]; then
       # chop off the filename from $varname, and from ${Filename_Array[0]}
       echo ${Filename_Array[Filename_Start]}
       echo $varname

       if [[ $varname = "next5" ]]; then
        Rename_Start=$[$Rename_Start+$skip_amount]
        if [[ $Rename_Start -gt $array_end ]]; then
      echo $array_end
      echo $Rename_Start
          echo "Reached the end of the list of images"
      Rename_Start=$array_end
    fi
    break
       fi

       if [[ $varname = "back5" ]]; then
    Rename_Start=$[$Rename_Start-$skip_amount]
    if [[ $Rename_Start -lt 0 ]]; then
      echo "Reached the start of the list of images"
      Rename_Start=0
     fi
    break
       fi
   
       if [[ $varname = "previous_rom" ]]; then
    Filename_Start=$[$Filename_Start-1]
    if [[ $Filename_Start -lt 0 ]]; then
      echo "Reached the start of the list of images"
      Filename_Start=0
     fi
    break
       fi

       if [[ $varname = "skip_5_roms" ]]; then
    Filename_Start=$[$Filename_Start+1]
    break
       fi      

       # get only the file name of the file
       FILENAME_AND_EXTN=$(echo ${Filename_Array[Filename_Start]} | rev | cut -d"/" -f1 | rev)
       FILENAME=$( echo $FILENAME_AND_EXTN | cut -d"." -f1)

       VARNAME_AND_EXTN=$(echo $varname | rev | cut -d"/" -f1 | rev)
       EXTENSION=$( echo $varname | cut -d"." -f2)
    #EXTENSION=jpg

       # get the path of the destination directory
       ONLY_PATH=$(echo $varname | rev | cut -d"/" -f2- | rev)
       echo mv "$varname" "$ONLY_PATH/$FILENAME.$EXTENSION"
       mv "$varname" "$ONLY_PATH/$FILENAME.$EXTENSION"
       #increment files to process
       Filename_Start=$[$Filename_Start+1]
       #Rename_Start=$[$Rename_Start+1]             
       # start over   
       #function rename
       break
   else
       echo 'skipped renaming file'
       echo $Rename_Start
       Filename_Start=$[$Filename_Start+1]
       break
   fi
done

#echo $Filename_Start

rename_files
}

rename_files