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Re: Input line splitting and OFS
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From: |
david kerns |
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Subject: |
Re: Input line splitting and OFS |
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Date: |
Fri, 15 Nov 2019 07:08:45 -0700 |
OFS is used whenever you construct output... modifying $0 (or anything $N
that results in $0 being modified) is considered "output" ... many awk
programmers set OFS=FS whenever they intend to modify $0... or as Peter
Brooks suggested, copy $0 to a local var, and modify the local var.
Specifically, to avoid modifying $0.
On Fri, Nov 15, 2019 at 7:03 AM Andrew J. Schorr <
address@hidden> wrote:
> Hi,
>
> On Fri, Nov 15, 2019 at 11:25:26AM +0000,
> address@hidden wrote:
> > But my question is more about the reasoning behind the use of OFS in the
> context of an input line. Why is OFS used, when we’re dealing with input ?
>
> What else could be used to reassemble the input line? Keep in mind that FS
> could contain a regular expression, etc., or we could be using FPAT. The
> OFS
> constant value is the only thing available for reassembling $0, isn't it?
>
> Regards,
> Andy
>
>