[SOLARIS] what 's wrong with this script?

netbanker

# ! /bin/sh
# backup all files in current directory modified within last 24 hours
# in a \"tarball\"( tarred and gzipped file);

NOARGS=0

if [ $# = $NOARGS ]
then
    echo \"Usage: `basename $0` filename \"
    exit 0
fi

tar cvf - `find . -mtime -1 type f -print` > $1.tar   #sth wrong in this line
gzip $1.tar

#can not be used!
#find . -mtime -1 -type f -print0 | xargs -0 tar rvf \"$1.tar\"