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Full Discussion: --SunOS 5.10 nawk for paragraph not working
Top Forums Shell Programming and Scripting --SunOS 5.10 nawk for paragraph not working Post 303036714 by Don Cragun on Monday 8th of July 2019 11:22:25 PM
Old 07-09-2019
Quote:
Originally Posted by MadeInGermany
Don, they would all work with nawk. Or can you show me one that does not, or give me a pointer?
Hi MadeInGermany,
The original awk didn't have as many built-in variables as nawk. For example, if an original awk script used a variable named RS (which was not defined by the original awk but is the record separator in nawk and in the standards) the old script could behave very differently if that variable was set to anything other than a <newline> character.

I no longer have access to the old awk scripts that failed when run with nawk or /usr/xpg4/bin/awk and don't remember which variables they used, but it was things like this that caused awk to remain compatible with the original awk rather than making it a link to nawk on Solaris systems at least through Solaris 10.
These 2 Users Gave Thanks to Don Cragun For This Post:
MadeInGermany vgersh99
 

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LEARN ABOUT HPUX

ucblinks

ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10							    13 Apr 1994 						      ucblinks(1B)
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