9.1.1 Invoking card

card [options] applications [-- -options]

card is a shell script which tries to guess how to get your applications’ help message (typically by the options ‘--help’ or ‘-h’), and pretty prints it thanks to a2ps (or the content of the environment variable ‘A2PS’ if it is set). -options are passed to a2ps.

Supported options are:

Option: -h ¶

Option: --help ¶

print a short help message and exit successfully.

Option: -V ¶

Option: --version ¶

report the version and exit successfully.

Option: -q ¶

Option: --quiet ¶

Option: --silent ¶

Run silently.

Option: -D ¶

Option: --debug ¶

enter in debug mode.

Option: -l language ¶

Option: --language=language ¶

specify the language in which the reference card should be printed. language should be the symbol used by LC_ALL etc. (such as ‘fr’, ‘it’ etc.).

If the applications don’t support internationalization, English will be used.

Option: --command=command ¶

Don’t try to guess the applications’ way to report their help message, but rather use the call command. A typical example is

card --command="cc -flags"

It is possible to give options to a2ps (see Command line options) by specifying them after ‘--’. For instance

card gmake gtar --command="cc -flags" -- -Pdisplay

builds the reference card of GNU make, GNU tar (automatic detection of ‘--help’ support), and cc thanks to ‘-flags’.