Fixing signal 13 error on find
 

I have a situation where I'm trying to install softwares into my system. I'm using a fakeroot approach to install them in a separate directory where I'm listing all the files, directories and links they install into 3 files FILES,DIRS,LINKS. Then I'm using find to get sha1sums of all files in a file named sha1sums. I don't want the sha1sum of the file sha1sums itself. So I used this command

This worked fine. However when installing kbd-2.0.3, it threw a lot of lines of error-

I know signal 13 stands for Broken Pipe. But I don't get two things-

1. Why is it happening with only this package?
2. This is probably being caused by grep closing the read pipe. But why is it closing it?

Also I checked that there are some sha1sums listed on the file "sha1sums". It just stops after a certain point
Thanks in advance.

some of your filenames may have spaces in try using '{}' instead of {}