Question

我想替换每个引用的可打印换行符，但只能在第一次出现特定单词后才会替换。

示例：

blabla=
test

--69c1683a3ee16ef7cf16edd700694a2f
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<title>Testing Manuel Lemos' MIME E-mail composing and sending PHP class: H=
TML message</title>
<style type=3D"text/css"><!--
body { color: black ; font-family: arial, helvetica, sans-serif ; backgroun=
d-color: #A3C5CC }
A:link, A:visited, A:active { text-decoration: underline }
--></style>
</head>
<body>
<table background=3D"cid:4c837ed463ad29c820668e835a270e8a.gif" width=3D"100=
%">
<tr>
<td>
<center><h1>Testing Manuel Lemos' MIME E-mail composing and sending PHP cla=
ss: HTML message</h1></center>
<hr>
<P>Hello Manuel,<br><br>
This message is just to let you know that the <a href=3D"http://www.phpclas=
ses.org/mimemessage">MIME E-mail message composing and sending PHP class</a=
> is working as expected.<br><br>
<center><h2>Here is an image embedded in a message as a separate part:</h2>=
</center>
<center><img src=3D"cid:ae0357e57f04b8347f7621662cb63855.gif"></center>Than=
k you,<br>
mlemos</p>
</td>
</tr>
</table>
</body>
</html>
--69c1683a3ee16ef7cf16edd700694a2f--

到目前为止，我正在使用此sed命令：

sed ':a;N;$!ba;$s/=\n//g'

结果：

blablatest

--69c1683a3ee16ef7cf16edd700694a2f
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<title>Testing Manuel Lemos' MIME E-mail composing and sending PHP class: HTML message</title>
<style type="text/css"><!--
body { color: black ; font-family: arial, helvetica, sans-serif ; background-color: #A3C5CC }
A:link, A:visited, A:active { text-decoration: underline }
--></style>
</head>
<body>
<table background="cid:4c837ed463ad29c820668e835a270e8a.gif" width="100%">
<tr>
<td>
<center><h1>Testing Manuel Lemos' MIME E-mail composing and sending PHP class: HTML message</h1></center>
<hr>
<P>Hello Manuel,<br><br>
This message is just to let you know that the <a href="http://www.phpclasses.org/mimemessage">MIME E-mail message composing and sending PHP class</a> is working as expected.<br><br>
<center><h2>Here is an image embedded in a message as a separate part:</h2></center>
<center><img src="cid:ae0357e57f04b8347f7621662cb63855.gif"></center>Thank you,<br>
mlemos</p>

问题是，

blabla=
test

也变成了

blablatest

所以我希望sed命令只在第一次出现“html”后执行。我试过了：

sed ':a;N;$!ba;/html/,$s/=\n//g'

但它不起作用。

Answer 1

在命令前移动/<html>/地址：

sed '/<html>/{:a;N;$!ba;$s/=\n//g}' file

在第一次出现特定单词后，用sed替换带引号的可打印换行符（= \ n）

1 个答案: