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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We have some plain <st1:State w:st="on"><st1:place w:st="on">TeX</st1:place></st1:State>
files on our UNIX system. Within the file, we have tried to input another file
using an environment variable, for example \input $tx/bookdef. <st1:State
w:st="on"><st1:place w:st="on">TeX</st1:place></st1:State> is unable to find
the file, though LaTeX is. Do you know if there has been a change in Plain TeX,
making it unable to read these variables? Thank you very much for your time and
consideration.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Linda Bethel<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>lbethel@gsb.stanford.edu<o:p></o:p></span></font></p>
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