[linux-help] Regular expression with grep

[bruce <bbales@xxxxxxx>]

I have a large file which is a concatination and sort of two files, one 
from msdos and the other from linux.  Each line is a single word.  grep 
doesn't work as I expected on this file.  Examination revealed some 
lines end with "(space)LF" and some end with "CR/LF".  

I want to eliminate the CR and the space.  I tried
cat foo |sed s/\x0d\x0a/\x0a/ and it didn't do anything.  A test run of 
cat foo |grep \x0d finds nothing.  Neither does 
cat foo |grep \x61.  cat foo |grep a finds lots of words with an "a" in 
them.

I tried many combinations of quotes, parentheses, braces, brackets, 
single quotes and nothing works with grep or sed.

Several books and a search of the web didn't turn up anything useful.  
Any help?
bruce
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