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Updated: Wednesday, February 9, 2022

gnuplot (1)


gnuplot - an interactive plotting program


gnuplot [X11 options] [options] [file ...]


GNUPLOT(1)                  General Commands Manual                 GNUPLOT(1)

       gnuplot - an interactive plotting program

       gnuplot [X11 options] [options] [file ...]

       Gnuplot is a command-driven interactive plotting program.

       If file names are given on the command line, gnuplot loads and executes
       each file in the order specified, and exits after the last file is pro-
       cessed.   If  no  files are given, gnuplot prompts for interactive com-

       Here are some of its features:

       Plots any number of functions, built up of C operators, C math  library
       functions, and some things C doesn't have like **, sgn(), etc.

       User-defined constants and functions.

       All  computations  performed in the complex domain.  Just the real part
       is plotted by default, but functions like imag() and  abs()  and  arg()
       are available to override this.

       Many  presentation  styles for plotting user data from files, including
       surface-fitting, error bars, boxplots, histograms, heat maps, and  sim-
       ple manipulation of image data.  There is an on-line demo collection at

       Nonlinear least-squares fitting.

       2D and 3D plots with mouse-controlled zooming, rotation, and hypertext.

       Shell escapes and command line substitution.

       Load and save capability.

       Support for a huge variety of output devices and file formats.

       -p,  --persist  lets  plot  windows  survive after main gnuplot program

       -c scriptname ARG1 ARG2 ..., load script using gnuplot's "call"  mecha-
       nism and pass it the remainder of the command line as arguments

       -d,  --default  settings.   Do not read from gnuplotrc or ~/.gnuplot on

       -e "command list" executes the requested commands  before  loading  the
       next input file.

       -s,  --slow  wait  for  slow font initialization rather than continuing
       with an error.

       -h, --help print summary of usage

       -V show current version

       For terminal type x11, gnuplot accepts the standard X  Toolkit  options
       and  resources such as geometry, font, and background. See the X(1) man
       page for a description of common options.   For  additional  X  options
       specific  to  gnuplot, type help x11 on the gnuplot command line. These
       options have no effect on other terminal types.

       A number of shell environment  variables  are  understood  by  gnuplot.
       None of these are required.

              The  name  of the terminal type to be used by default.  This can
              be overridden by the gnuplotrc or .gnuplot start-up  files  and,
              of course, by later explicit "set terminal" commands.

              The pathname of the HELP file (gnuplot.gih).

       HOME   The name of a directory to search for a .gnuplot file.

       PAGER  An output filter for help messages.

       SHELL  The program used for the "shell" command.

              Specifies  a gnuplot command to be executed when a fit is inter-
              rupted---see "help fit".

              The name of the logfile maintained by fit.

              Additional search directories for data and  command  files.  The
              variable  may  contain  a  single  directory  name, or a list of
              directories separated by ':'. The contents  of  GNUPLOT_LIB  are
              appended  to  the  "loadpath"  variable,  but not saved with the
              "save" and "save set" commands.

              Several gnuplot terminal drivers access TrueType fonts  via  the
              gd  library.  This variable gives the font search path for these

              The default font for the terminal drivers that  access  TrueType
              fonts via the gd library.

              The font search path used by the postscript terminal. The format
              is the same as for GNUPLOT_LIB. The contents of GNUPLOT_FONTPATH
              are  appended to the "fontpath" variable, but not saved with the
              "save" and "save set" commands.

              Used by the postscript driver to locate external prologue files.
              Depending  on  the  build  process,  gnuplot  contains  either a
              builtin copy of those files or simply a default hardcoded  path.
              Use  this  variable  to test the postscript terminal with custom
              prologue files. See "help postscript prologue".

              When gnuplot is run, it first looks for a  system-wide  initial-
              ization  file  named  gnuplotrc.   The standard location of this
              file expected by the program is reported by the "show  loadpath"

              After  loading the system-wide initialization file, if any, Gnu-
              plot looks for a private initialization file in the HOME  direc-
              tory.   It may contain any legal gnuplot commands, but typically
              they are limited to setting  the  preferred  terminal  and  line
              types and defining frequently-used functions or variables.

              The default name of the logfile output by the "fit" command.

       Original authors: Thomas Williams and Colin Kelley.  Starting with gnu-
       plot version 3.8, the project source  is  cooperatively  maintained  on
       SourceForge by a large number of contributors.

       Please report bugs using the project bug tracker on SourceForge.

       See attributes(7) for descriptions of the following attributes:

       |Availability   | image/gnuplot    |
       |Stability      | Uncommitted      |

       See the printed manual or the on-line help for details on specific com-
       mands.  Project web site at http://gnuplot.info

       Source code for open source software components in Oracle  Solaris  can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-

       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source  was  downloaded   from    https://sourceforge.net/projects/gnu-

       Further information about this software can be found on the open source
       community website at http://gnuplot.info/.

4th Berkeley Distribution        15 March 2019                      GNUPLOT(1)