linux-kernel - Re: [PATCH] tools/slabinfo-gnuplot: force to use bash shell

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Message-Id: <20171208140246.bc111cc726d5f7f8ff7c2ed2@linux-foundation.org>
Date:   Fri, 8 Dec 2017 14:02:46 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:     "Liu, Changcheng" <changcheng.liu@...el.com>,
        sergey.senozhatsky@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tools/slabinfo-gnuplot: force to use bash shell

On Fri, 8 Dec 2017 19:33:15 +0900 Sergey Senozhatsky <sergey.senozhatsky.work@...il.com> wrote:

> On (12/08/17 17:37), Liu, Changcheng wrote:
> > 
> > On some linux distributions, the default link of sh
> > is dash which deoesn't support split array like
> > ${var//,/ }
> > It's better to force to use bash shell directly.
> > 
> > Signed-off-by: Liu Changcheng <changcheng.liu@...el.com>
> 
> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

It would be better to rewrite the script to avoid bashisms.  But...

akpm3:/usr/src/linux-4.15-rc2> grep -rl "/bin/bash" . | wc -l
164

I guess we lost that fight a long time ago.