Problem with command from LFS

Question

So right now I'm in the middle of a LFS build (current stable).  I'm at Chapter 5 and currently doing the first build of glibc.  I'm having problems with the command:
ln -vs libgcc.a 'gcc -print-libgcc-file-name | sed 's/libgcc/&_eh/''
I've tried the above, escaping the sed command with '\' and doing a new line, a whole bunch of things.  It's all typed correctly because the 'gcc -print... | sed 's/libgcc/&_eh/'' line works fine by itself, but not with the whole command.  I would just use the absolute path that the second half (I think) is looking for, but I'm on a fresh Arch install, no X or anything and the path it prints me is "/mnt/lfs/tools/bin/../lib/gcc..." and that's not going to work. 
Any help would be greatly appreciated.

Answer 1

Just so you know, sed is sort of like a filter. If you do
echo "hello" | sed s/hello/bye/
The output will be bye instead of hello. It subsistuted hello with bye. It's a very handy dandy tool. If you can master it, you can do some very powerful and meaningful things with your outputs and files. The amp (&) is what you filtered (libgcc in your case) and then you added the _eh to the end of it (replacing all libgcc with libgcc_eh instead). I really recommend looking into sed, I find it very useful. Even if you don't have anything useful to do with it, you can definitely make yourself look cool using it instead which is really why we all use Linux (just kidding - sort of). B)
echo "hello" | sed 's/hello/Then I said "&" to her./'
Last edited by Aprz (2009-03-20 06:14:15)