uploads images e too imgur.com, returns url on success, 1 otherwise (bash function)

gistfile1.txt

# uploads images e too imgur.com, returns url on success, 1 otherwise
# @dependancy curl 

function uploadimg()
{ 
    [ -z "$1" ] && return 1

    for img
    do
        if [ -f "$img" ] ; then
            case "$img" in
                *.jpg|*.JPG|*.jpeg|*.png|*.PNG)
                    if [ -f /usr/bin/xclip ]; then
                        curl -s -F "image=@$img" -F "key=486690f872c678126a2c09a9e196ce1b" http://imgur.com/api/upload.xml \
                            | egrep -o "<original_image>(.)*</original_image>" | \
                            egrep -o "http://i.imgur.com/[^<]*" | tee /dev/fd/2 | xclip 
                    else
                        curl -s -F "image=@$img" -F "key=486690f872c678126a2c09a9e196ce1b" http://imgur.com/api/upload.xml \
                            | egrep -o "<original_image>(.)*</original_image>" | \
                            egrep -o "http://i.imgur.com/[^<]*"
                    fi
                    ;;
                *)
                    return 1
                    ;;
            esac
        else
            return 1
        fi
    done
}