I am a mac user but I have installed the TeX Live distribution without the help of MacTeX. The directory
/usr/texbin is missing and TeXShop or TeXworks won't compile.
I know that I can change the path to the bin in these applications, but I would prefer creating a
/usr/texbin (is it a symbolic link?) similar to the one created by MacTeX.
PS : Why do I am in this situation ? I wanted to update my installation to 2013. So, I downloaded the big
.iso file of the TeXLive distribution. But, TeXShop was still accessing the 2012 folder... So I removed this one, etc.