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Re: Q: echo | sed ; can't replace range of lines
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Re: Q: echo | sed ; can't replace range of lines


  • Subject: Re: Q: echo | sed ; can't replace range of lines
  • From: Graff <email@hidden>
  • Date: Mon, 17 May 2004 20:36:54 -0400

You need to quote the string you are passing to the shell because of the return characters. The return characters cause the command to be:
----
echo 1<return>
2<return>
3<return>
4<return>
5<return>
6 | sed 's/2/8/'
----

So the shell misinterprets your command. Here is a corrected version of the script:
----
set someLines to quoted form of "1
2
3
4
5
6"

do shell script "echo " & someLines & " | sed 's/2/8/'"
-->"1
-->8
-->3
-->4
-->5
-->6"

do shell script "echo " & someLines & " | sed '/2/,/5/d'"
-->"1
-->6"
----

- Ken

On May 17, 2004, at 6:38 PM, Gnarlodious wrote:

Why does the first command work but the 2nd doesn't?

set someLines to "1
2
3
4
5
6"

set replaceLine to do shell script "echo " & someLines & " | sed 's/2/8/'"

set deleteRange to do shell script "echo " & someLines & " | sed '/2/,/5/d'"


It operates on a text file just fine:

do shell script "sed -e '/2/,/5/d' testFile"

-- > 1
-- > 6


Am I doing something wrong?
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