Programming

In the following Shell Script can anyone help me?
What are the total scripts?
What are the total binaries?
What are the total files?

Code:

#!/bin/sh
GREP="/bin/grep -q"
if[ "${1}" != ""] ; then
	if [ -d ${I} ] ; then
		for | in ${I}/* ;do
			file ${I} | ${GREP} "executable" && echo "${I} is a binary"
			file ${I} | ${GREP} "script" && echo "${I} is a script"
		done
	else	
		echo "${I} must be a directory"
	fi	
else
	echo "Format: chk4exec directory"
fi
exit

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