merg-jpg-to-pdf.sh

#!/bin/bash
#
# This script traverses through a directory of pdf's scanned in Windows with default scanned names 
# e.g. Image.jpg, Image (1).jpg etc
# It merges them in ascending order and outputs them in ./pdfs/

for i in $(find . -name "*" -type d); 
do
    STR=$i
    NAME=${STR:2:${#STR}}
    #only target folders with length > 2
    if [ "${#NAME}" -gt "2" ]; then
    
    IMAGEPRE="$(pwd)/"$NAME
    
    #only check 1-4
    for f in $(seq 1 4); 
    do
	if [ "$f" -eq "1" ]; 
	then
	    IMAGEPOST="Image.jpg"
	else
	    IMAGEPOST="Image ($f).jpg"   
	fi
        convert "$NAME/$IMAGEPOST" "$NAME/$f.pdf"
    done

    ARGS=""
    for g in $(seq 1 4);
    do
       if [ ! -f $NAME/$g".pdf" ]; then
	   echo "" #$NAME/$g".pdf does not exist!"
       else
	   ARGS=$ARGS" $NAME/$g.pdf"
       fi
    done
    echo $ARGS
    "/System/Library/Automator/Combine PDF Pages.action/Contents/Resources/join.py" -o pdfs/$NAME.pdf $ARGS
	
    fi
done