Your company here, and a link to your site. Click to find out more.

grace - Man Page


grace — command line interface
xmgrace — full-featured GUI mode
gracebat — batch mode — print and exit


Grace is a WYSIWYG tool to make two-dimensional plots of scientific data.


grace [ option | filename ]...
xmgrace [ option | filename ]...
gracebat [ option | filename ]...


-autoscale x|y|xy|none

Set autoscale type


Turn off all toolbars

-batch file

Execute batch file on start up (i.e., after all other options have been processed and the UI initialized)

-block file

Assume the data file is block data

-bxy x:y:etc.

Form a set from the current block data set using the current set type from columns given in the argument

-datehint iso|european|us|days|seconds|nohint

Set the hint for dates analysis

-dpipe descriptor

Read data from descriptor on startup

-fixed width height

Set canvas size fixed to width*height


Use free page layout

-graph number

Set the current graph number

-graphtype xy|chart|fixed|polar|pie

Set the type of the current graph


No interactive session, just print and quit

-hdevice device_name

Set default hardcopy device. See xmgrace -version for a list of supported devices.


Install private colormap

-legend load

Turn the graph legend on

-log x|y|xy

Set the axis scaling of the current graph to logarithmic

-maxpath length

Set the maximal drawing path length


Run grace in monochrome mode (affects the display only)

-netcdf file

Assume data file is in netCDF format. This option is present only if the netCDF support was compiled in

-netcdfxy X_var Y_var

If -netcdf was used previously, read from the netCDF file X_var and Y_var variables and create a set. If X_var is "null" then load the index of Y to X. This option is present only if the netCDF support was compiled in


Assume the answer is yes to all requests, if the operation would overwrite a file, grace will do so without prompting


Don't use private colormap


In batch mode, do not print


Disable safe mode


Don't catch signals

-npipe file

Read data from named pipe on startup

-nxy file

Assume data file is in X Y1 Y2 Y3 ...  format

-param file

Load parameters from file to the current graph

-pexec string

Interpret string as a parameter setting


Read data from stdin on startup

-printfile file

Save print output to file


Remove data file(s) after read

-results file

Write results of some data manipulations to file


Exchange the color indices for black and white


Run in the safe mode (default)

-saveall file

Save all to file

-seed value

Integer seed for random number generator

-settype xy|xydx|...

Set the type of the next data file

-source disk|pipe

Source type of next data file

-timer delay

Set allowed time slice for real time inputs to delay ms


Add timestamp to plot


Show the program version, registered devices and build time configuration information.

-viewport xmin ymin xmax ymax

Set the viewport for the current graph

-wd path

Set the working directory

-world xmin ymin xmax ymax

Set the world coordinates for the current graph


This message


When run in the GUI mode, the interface is a subject to X resource settings.

Please refer to the User's Guide for a list of important ones.



Specifies the directory where the Grace docs and libs are stored. Default is /usr/local/grace


The shell command to run an HTML viewer for on-line browsing of the help documents. Must include at least one instance of "%s" which will be replaced with the actual URL by Grace. Default is mozilla %s


Specifies the editor which is used to edit sets. Default is xterm -e vi


The print command.


and GRACE_FFTW_WISDOM_FILE A flag (0 or 1) and a file name which determine whether a FFT should use  `wisdom' when using the FFTW libraries.


In many cases, when Grace needs to access a file given with a relative pathname, it searches for the file along the following path:

The following files are of a special importance:

gracerc - init file loaded upon start up.

templates/Default.agr - the default template, loaded whenever a new project is started.

fonts/FontDataBase - the file responsible for font configuration.

See Also

grconvert(1), X(1) [or Xorg(1)], Grace User's Guide

Home Page



The best way to submit a bug report is using the "Help/Comments" menu entry. Alternatively, see the home page.


Grace is derived from ACE/gr (a.k.a Xmgr ) written by Paul J Turner. From version number 4.00, the development was taken over by a team of volunteers under the coordination of Evgeny Stambulchik.


The program is distributed under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Referenced By

convcal(1), grconvert(1).

The man pages gracebat(1) and xmgrace(1) are aliases of grace(1).

Jan 28, 2007