ENVIRONMENT:
TEXMFOUTPUT
Normally, TeX puts its output files in the current
directory. If any output file cannot be opened there,
it tries to open it in the directory specified in the
environment variable TEXMFOUTPUT. There is no default
value for that variable. For example, if you say tex
paper and the current directory is not writable, if
TEXMFOUTPUT has the value /tmp, TeX attempts to create
/tmp/paper.log (and /tmp/paper.dvi, if any output is
produced.)
TEXINPUTS
Search path for \input and \openin files. This should
probably start with ``.'', so that user files are found
before system files.
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