(a2ps.info)Output Options

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3.1.8 Output Options
--------------------

These are the options to specify what you want to do out of what a2ps
produces.  Only a single destination is possible at a time, i.e., if
ever there are several options '-o', '-P' or '-d', the last one is
honored.

 -- Option: -o FILE
 -- Option: --output=FILE
     leave output to file FILE.  If FILE is '-', leave output to the
     standard output.

 -- Option: --version-control=TYPE
     to avoid loosing a file, a2ps offers backup services.  This is
     enabled when the output file already exists, is regular (that is,
     no backup is done on special files such as '/dev/null'), and is
     writable (in this case, disabling version control makes a2ps fail
     the very same way as if version control was disabled: permission
     denied).

     The type of backups made can be set with the 'VERSION_CONTROL'
     environment variable, which can be overridden by this option.  If
     'VERSION_CONTROL' is not set and this option is not given, the
     default backup type is 'existing'.  The value of the
     'VERSION_CONTROL' environment variable and the argument to this
     option are like the GNU 'Emacs' 'version-control' variable; they
     also recognize synonyms that are more descriptive.  The valid
     values are (unique abbreviations are accepted):
     'none'
     'off'
          Never make backups (override existing files).

     't'
     'numbered'
          Always make numbered backups.

     'nil'
     'existing'
          Make numbered backups of files that already have them, simple
          backups of the others.

     'never'
     'simple'
          Always make simple backups.

 -- Option: --suffix=SUFFIX
     The suffix used for making simple backup files can be set with the
     'SIMPLE_BACKUP_SUFFIX' environment variable, which can be
     overridden by this option.  If neither of those is given, the
     default is '~', as it is in 'Emacs'.

 -- Option: -P NAME
 -- Option: --printer=NAME
     send output to printer NAME.  See item 'Printer:' and 'Unknown
     printer:' in Note: Your Printers and results of option
     '--list=defaults' to see the bindings between printer names and
     commands.

     It is possible to pass additional options to 'lpr' or 'lp' via the
     variable 'lp.options', for more information see Note: Pass Options
     to lpr.

 -- Option: -d
     send output to the default printer.  See item 'DefaultPrinter:' in
     Note: Your Printers.