Suppose I have a pipe delimited file called jam.dat which has

aaa|bbb|ccc|ddd|
eee|fff|ggg|hhh|
iii||kkk|lll|
mmm||||
qqq|rrr|sss|ttt|


I just needed to write a script that will erase the ending '|' symbol from each of the lines. How do I do this ?
The end output should look like:

aaa|bbb|ccc|ddd
eee|fff|ggg|hhh
iii||kkk|lll
mmm|||
qqq|rrr|sss|ttt

Thanks

sed -e 's/\|$//g' jam.dat

Thanks, pal