Here are a couple of handy environment variables:

export GRACE_PRINT_CMD=''    # print to file
export GRACE_EDITOR='xemacs'

=================================================================

There are two primary config files for grace.  They are:
gracerc                # global config (searched for in magic path)
templates/Default.agr  # project config (searched for in magic path)

All things are searched for in the "magic path", which is:
.:./.grace:~/.grace:$GRACE_HOME
(searching stops when file is found)

=================================================================

You can set this in your .Xdefaults or .Xresources
XMgrace.geometry: 870x690

=================================================================
You can set filters in the gracerc.  Here's an example:

DEFINE IFILTER "grep -v '^#' %s " PATTERN "*.txt"

This filters all imcoming .txt files through grep, removing lines that
start with a hash.
=================================================================
Here's my Default.agr.  The best way I've found to figure out these
settings is to open a graph, set the setting you want (via the gui)
and then save it.  Then, look in the saved file for the setting.

## .grace/templates/Default.agr

# Grace project file
#
@version 50102
@hardcopy device "EPS"
@page size 792, 612
@page scroll 5%
@page inout 5%
@link page off

@map font 0 to "Times-Roman", "Times-Roman"
@map font 1 to "Times-Italic", "Times-Italic"
@map font 2 to "Times-Bold", "Times-Bold"
@map font 3 to "Times-BoldItalic", "Times-BoldItalic"
@map font 4 to "Helvetica", "Helvetica"
@map font 5 to "Helvetica-Oblique", "Helvetica-Oblique"
@map font 6 to "Helvetica-Bold", "Helvetica-Bold"
@map font 7 to "Helvetica-BoldOblique", "Helvetica-BoldOblique"
@map font 8 to "Courier", "Courier"
@map font 9 to "Courier-Oblique", "Courier-Oblique"
@map font 10 to "Courier-Bold", "Courier-Bold"
@map font 11 to "Courier-BoldOblique", "Courier-BoldOblique"
@map font 12 to "Symbol", "Symbol"
@map font 13 to "ZapfDingbats", "ZapfDingbats"

@map color 0 to (255, 255, 255), "white"
@map color 1 to (0, 0, 0), "black"
@map color 2 to (255, 0, 0), "red"
@map color 3 to (0, 255, 0), "green"
@map color 4 to (0, 0, 255), "blue"
@map color 5 to (255, 255, 0), "yellow"
@map color 6 to (188, 143, 143), "brown"
@map color 7 to (220, 220, 220), "grey"
@map color 8 to (148, 0, 211), "violet"
@map color 9 to (0, 255, 255), "cyan"
@map color 10 to (255, 0, 255), "magenta"
@map color 11 to (255, 165, 0), "orange"
@map color 12 to (114, 33, 188), "indigo"
@map color 13 to (103, 7, 72), "maroon"
@map color 14 to (64, 224, 208), "turquoise"
@map color 15 to (0, 139, 0), "green4"

@reference date 0
@date wrap off
@date wrap year 1950
@default linewidth 2.0
@default linestyle 1
@default color 1
@default pattern 1
@default font 0
@default char size 2.000000
@default symbol size 2.000000
@default sformat "%16.8g"

@background color 0
@page background fill off

@timestamp off
@timestamp 0.95, 0.95
@timestamp color 1
@timestamp rot 0
@timestamp font 0
@timestamp char size 1.000000
@timestamp def "*** *** -- --:--:-- ----"

@with g0
@    title size 2.5
@    legend 0.85, 0.8

@    view xmin 0.15
@    view xmax 1.15
@    view ymin 0.15
@    view ymax 0.85

@    xaxis ticklabel char size 2
@    xaxis tick major size 1
@    xaxis tick minor size 0.5

@    yaxis ticklabel char size 2
@    yaxis tick major size 1
@    yaxis tick minor size 0.5