LPRng Reference Manual: 3 May 2004 (For LPRng-3.8.27) | ||
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If no command line option is specified, the LPRng clients will use the first defined PRINTER, LPDEST, NPRINTER, or NGPRINTER environment variable value and will use the value as though specified as a -P$PRINTER command line literal. If the value has the form -Pprinter@host the print queue will be printer on server host and not consult the printcap database. If the value has the form printer then the printcap will be searched for a printer printcap entry. For example:
export PRINTER=laser@10.0.0.1; lpr equivalent to printcap entry: laser:lp=laser@10.0.0.1 export PRINTER=pr; lpr look up printcap entry for 'lp'