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(gnuplot.info)Environment

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Enter node , (file) or (file)node

 A number of shell environment variables are understood by `gnuplot`
 (Note: gnuplot ).  None of these are required, but may be useful.

 If GNUTERM is defined, it is used as the name of the terminal type to be
 used.  This overrides any terminal type sensed by `gnuplot` on start-up, but
 is itself overridden by the .gnuplot (or equivalent) start-up file (see
 `start-up`) and, of course, by later explicit changes.

 On Unix, AmigaOS, AtariTOS, MS-DOS and OS/2, GNUHELP may be defined to be the
 pathname of the HELP file (gnuplot.gih).

 On VMS, the logical name GNUPLOT$HELP should be defined as the name of the
 help library for `gnuplot`.  The `gnuplot` help can be put inside any system
 help library, allowing access to help from both within and outside `gnuplot`
 if desired.

 On Unix, HOME is used as the name of a directory to search for a .gnuplot
 file if none is found in the current directory.  On AmigaOS, AtariTOS,
 MS-DOS and OS/2, gnuplot is used.  On VMS, SYS$LOGIN: is used. See `help
 (Note: help ) start-up`.

 On Unix, PAGER is used as an output filter for help messages.

 On Unix, AtariTOS and AmigaOS, SHELL is used for the `shell` (Note: shell )
 command.  On MS-DOS and OS/2, COMSPEC is used for the `shell` command.

 On MS-DOS, if the BGI or Watcom interface is used, PCTRM is used to tell
 the maximum resolution supported by your monitor by setting it to
 S<max. horizontal resolution>. E.g. if your monitor's maximum resolution is
 800x600, then use:
       set PCTRM=S800
 If PCTRM is not set, standard VGA is used.

 FIT_SCRIPT may be used to specify a `gnuplot` command to be executed when a
 fit is interrupted---see `fit` (Note: fit ).  FIT_LOG specifies the filename
 of the logfile maintained by fit.