(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.