Sed - expression question

[pho01]

What expression would you use to remove an equal sign (=) and and equal sign 20 (=20) at the end of the line?

For some reason, in unix, the mail program automatically adds a "=" or "=20" at the end of the line, and i'd like to get rid of it.
Thanks!

 

[Chacalinc]

sed 's/=\n/\n/' input.txt > output.txt
sed 's/=20\n/\n/' input.txt > output.txt


Chacal, Inc.

 

[pho01]

Thanks Chacal,

Unfortunately, sed only allows up to max lines. on my machine, it only display the output up to 1122 lines. everything else got cut.

 

[pho01]

oops, wrong post