Shell Programming and Scripting

I am a newbie to shell programming. Can someone help me with the following ?

Shell script that accomplishes the following -

# Step 1 List all files in the directory
# Step 2 Loop through each filename say a.htm and MD5 hash the filename to say b.htm
# Step 3 copy a.htm to b.htm
# Step 4 Move a.htm to X directory and b.htm to Y directory

Thanks in advance.

#1 ls -a
#2 for i in $( ls ); do m5sum $i > $i.md5; done
#3 cp a.htm b.htm
#4 mv a.htm X && mv b.htm Y