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Top Forums UNIX for Advanced & Expert Users why we have different shells? Post 302268130 by shahnazurs on Monday 15th of December 2008 05:17:51 AM
Old 12-15-2008
why we have different shells?

Can you pls. tell me, why we have different shells in UNIX OS ( Eg. SunOs) and also I would like to know what is the specific difference b/w SVR and BSD ?

Thanks.
 

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LP(1)							    BSD General Commands Manual 						     LP(1)

NAME
lp -- front-end to the print spooler SYNOPSIS
lp [-cs] [-o option] [-d printer] [-n num] [name ...] DESCRIPTION
The lp utility is a front-end to the print spooler as required by the IEEE Std 1003.2 (``POSIX.2'') specification. It effectively invokes lpr(1) with the proper set of arguments. It generally prints the named files on the destination printer. The following options are available: -c Make the lp command exit only after further access to any of the input files is no longer required. The application can then safely delete or modify the files without affecting the output operation. -d dest Specify a particular printer. If no -d is provided on the command line, the contents of the environment variables LPDEST or PRINTER (with this precedence) are taken as the destination printer. -m Send mail upon completion. -n num Specify that num copies of each of the named files shall be printed. -o option Printer specific options. Not supported, provided only as a compatibility option for SVR. -s Silent operation. Not supported, provided only as a compatibility option for Version 2 of the Single UNIX Specification (``SUSv2''). -t title Set the job title to title. ENVIRONMENT
As described above, the variables LPDEST and PRINTER are examined to select the destination printer. SEE ALSO
lpr(1) STANDARDS
The lp command is expected to comply with the IEEE Std 1003.2 (``POSIX.2'') specification. AUTHORS
This implementation of the lp command has been written by Jorg Wunsch. BUGS
The IEEE Std 1003.2 (``POSIX.2'') specification does not provide any means to print non-text files. It rather requires the files to be printed to be text files limited to reasonable line lengths and printable characters. BSD
January 22, 1995 BSD
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