TeX Live安装配置等默认目录

TeX Live默认目录情况：
   TEXDIR (the main TeX directory):
     !! default location: /usr/local/texlive/2015
     !! is not writable or not allowed, please select a different one!
   TEXMFLOCAL (directory for site-wide local files):
     /usr/local/texlive/texmf-local
   TEXMFSYSVAR (directory for variable and automatically generated data):
     /usr/local/texlive/2015/texmf-var
   TEXMFSYSCONFIG (directory for local config):
     /usr/local/texlive/2015/texmf-config
   TEXMFVAR (personal directory for variable and automatically generated data):
     ~/.texlive2015/texmf-var
   TEXMFCONFIG (personal directory for local config):
     ~/.texlive2015/texmf-config
   TEXMFHOME (directory for user-specific files):
     ~/texmf