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Re: Don't show help of `readonly' and `readarray' when I run `help read'

From: Maarten Billemont
Subject: Re: Don't show help of `readonly' and `readarray' when I run `help read'
Date: Thu, 10 Feb 2011 20:32:38 +0100

On 10 Feb 2011, at 15:21, Chet Ramey wrote:
> On 2/10/11 4:03 AM, Clark J. Wang wrote:
>> help: help [-dms] [pattern ...]
>> From my understanding the *pattern* here must be a glob-style pattern
>> (wildcard) so `readonly' does not match the pattern `read'.
> The pattern is composed of the same characters as a glob pattern, but
> it's treated more like 'grep ^pattern topic' if it doesn't contain any
> special pattern matching characters.
> Kind of like the following:
> $ printf "%s\n" read readonly readarray | grep ^read /dev/stdin
> read
> readonly
> readarray
> Chet

I must admit I personally dislike getting three pages of help output I don't 
care about when doing `help read`.  If I wanted to learn about `readonly`, I'd 
do `help readonly`.  I'm not sure the current behavior has any real merits over 
treating the pattern like glob pattern matching usually works (anchored to 
beginning and end).

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