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@c This file is used both in the exchange and merchant
@c manuals. Edits should be propagated to both Gits!

@node Using taler-config
@section Using taler-config
@cindex taler-config

The tool @code{taler-config} can be used to
extract or manipulate configuration values; however, the configuration
use the well-known INI file format and can also be edited by hand.

Run
@example
$ taler-config -s $SECTION
@end example
to list all of the configuration values in section @code{$SECTION}.

Run
@example
$ taler-config -s $section -o $option
@end example
to extract the respective configuration value for option @code{$option}
in section @code{$section}.

Finally, to change a setting, run
@example
$ taler-config -s $section -o $option -V $value
@end example
to set the respective configuration value to @code{$value}. Note that you have to
manually restart the Taler backend after you change the configuration to
make the new configuration go into effect.

Some default options will use $-variables, such as @code{$DATADIR}
within their value.  To expand the @code{$DATADIR} or other $-variables
in the configuration, pass the @code{-f} option to
@code{taler-config}.  For example, compare:
@example
$ taler-config -s ACCOUNT-bank \
               -o WIRE_RESPONSE
$ taler-config -f -s ACCOUNT-bank \
               -o WIRE_RESPONSE
@end example

While the configuration file is typically located at
@code{$HOME/.config/taler.conf}, an alternative location can be
specified to @code{taler-merchant-httpd} and @code{taler-config} using
the @code{-c} option.