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:
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