Re: how to replace multiple lines in a file?

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From: Michael Wang
Date: Tue, 10 Jun 2003 05:38

24 lines
2140 bytes

In article <9McFa.1192$PD3.13019@nnrp1.uunet.ca>,
Jeff Weeks <jweeks@mailandnews.com> wrote:
>For example, changing:
>[html]
><pre>
>
>to simply:
>[code]

These 11 lines work under ksh88, ksh93 and bash. Something shorter?

last=
while IFS= read -r curr; do
  if [[ $curr == *"<pre>"* && $last == *"[html]"* ]]; then
    printf "%s\n" "[code]"
    last=
  else
    [[ -n "$last" ]] && printf "%s\n" "${last#a}"
    last="a$curr"
  fi
done
printf "%s\n" "${last#a}"
-- 
Michael Wang * http://www.unixlabplus.com/ * mwang@unixlabplus.com

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Subject: Re: how to replace multiple lines in a file?
References: <9McFa.1192$PD3.13019@nnrp1.uunet.ca>
Organization: UnixLab Plus Inc, Jersey City, NJ
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From: mwang@unixlabplus.com (Michael Wang)
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Date: Tue, 10 Jun 2003 05:38:53 GMT
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