Shell Programming and Scripting

#!/bin/sh

tmp=/tmp/list.$$
ls -d /var/stash/Themes.* >$tmp 2>/dev/null     # look for existing directories

if [[ -s $tmp ]]     # if tmp file has size, something was found
then
        count=$(wc -l <$tmp)     
        if (( $count > 1 ))
        then
                echo "found more than one Themes directories in /var/stash; please enter path to use:"
                cat $tmp
                read tpath
        else
                read tpath <$tmp                # just get the one path
        fi

        tpath="$tpath/iMatte Loading Screens.theme/Folders"             # build the whole name
else
        echo "could not find a Themes directory in /var/stash [FAIL]"
        exit 1
fi


rm -f $tmp


find /var/mobile/Applications/ -name "*.app" -printf "%f\n" | while read file_name
do
        if [[ ! -e "$tpath/$file_name" ]]
        then
        	echo "making directory $file_name"    # nice confirmation
        	mkdir "$tpath/$file_name"
        else
        	echo "there is already a directory named $file_name"
        fi
done

find /Applications/ -name "*.app" -printf "%f\n" | while read file_name
do
        if [[ ! -e "$tpath/$file_name" ]]
        then
		echo "making directory $file_name"    # nice confirmation
        	mkdir "$tpath/$file_name"
        else
        	echo "there is already a directory named $file_name"
        fi
done

if ! cd "$tpath"
then
    echo "unable to switch to "$tpath" [FAIL]"
    exit 1
fi

for dir in *
do 
        if [[ -d "$dir" ]] 
        then
                if [[ -L "$dir/Default.png" ]]            # true if exists and is a symbolic file; remove if not a link.
                then
                        echo "All is good for $dir/Default.png, already a link.  Skipping..."
                elif [[ -e "$dir/Default.png" ]]
                then      
                        echo "Removing $dir/Default.png, it was an ordinary image"
			   rm "$dir/Default.png"
                        echo "Creating a link to ../../Default.png in $dir"
			   ln -s ../../Default.png "$dir/Default.png"
                elif [[ ! -e "$dir/Default.png" ]]          # true if it doesnt exist
                then
                        echo "Creating a link to ../../Default.png in $dir"
			   ln -s ../../Default.png "$dir/Default.png"
                fi

        fi
done

cd /var/mobile