.. index:: ! gmtset

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gmtset
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.. only:: not man

    gmtset - Change individual GMT default parameters

Synopsis
--------

.. include:: common_SYN_OPTs.rst_

**gmtset** [ **-C** \| **-D**\ [**s**\ \|\ **u**] \|
**-G**\ *defaultsfile* ] [ **-**\ [**BJRXxYycp**\ ]\ *value* ]
PARAMETER1 [=] *value1* PARAMETER2 [=] *value2* PARAMETER3 [=] *value3*
...

|No-spaces|

Description
-----------

**gmtset** will adjust individual GMT defaults settings in the
current directory's :doc:`gmt.conf` file. If no such file exists one will
be created. The main purpose of **gmtset** is temporarily to change
certain parameters inside a shell script, e.g., set the dots-per-inch to
72, run the script, and reset to 1200 dpi. Optionally, you can specify
one or more temporary changes directly on any GMT command line with
the syntax **--PARAMETER**\ =\ *VALUE*; such changes are only in effect
for that command and do not permanently change the default settings on
disk.

Required Arguments
------------------

PARAMETER *value*
    Provide one or several pairs of parameter/value combinations that
    you want to modify. For a complete listing of available parameters
    and their meaning, see the :doc:`gmt.conf` man page.

Optional Arguments
------------------

**-C**
    Convert a .gmtdefaults4 file created by GMT4 to a :doc:`gmt.conf` file
    used by GMT5. The original file is retained.

**-D**\ [**s**\ \|\ **u**]
    Modify the GMT defaults based on the system settings. Append
    **u** for US defaults or **s** for SI defaults. [**-D** alone gives
    the version selected at compile time]

**-G**\ *defaultsfile*
    Name of specific :doc:`gmt.conf` file to read and modify [Default looks
    first in current directory, then in your home directory, then in
    ~/.gmt and finally in the system defaults].

**-**\ [**BJRXxYycp**]\ *value*
    Set the expansion of any of these shorthand options. 

.. include:: explain_help.rst_

Examples
--------

To change annotation font to 12-point Helvetica, select grid-crosses of
size 0.1 inch, and set annotation offset to 0.2 cm:

   ::

    gmt set FONT_ANNOT_PRIMARY 12p,Helvetica \
            MAP_GRID_CROSS_SIZE_PRIMARY 0.1i MAP_ANNOT_OFFSET_PRIMARY 0.2c

See Also
--------

:doc:`gmt`, :doc:`gmt.conf`,
:doc:`gmtdefaults`, :doc:`gmtget`
