linux sed：用空格替换换行符< p>< /p>

oknrviil 于 2022-12-22 发布在 Linux

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假设我有这个文件：index.html
index.html

<p class="p">This
entry will determine the number of transmit threads, each channel
represents one thread, which can handle multiple multicast ports.
All channels are enabled by default. To temporarily disable a particular
channel, use the folowing configuration lines:</p>

我怎样才能把换行符替换成空格
仅标记
例如，将index.html更改为：

<p class="p">This entry will determine the number of transmit threads, each channel represents one thread, which can handle multiple multicast ports. All channels are enabled by default. To temporarily disable a particular channel, use the folowing configuration lines:</p>`

尝试过，

sed -e "/<p>/s/\n/ /g" index.html

不工作

linux

来源：https://stackoverflow.com/questions/74859884/sed-replace-newline-within-p-p-with-space

3条答案

按热度按时间

vngu2lb81#

使用gnu-sed：

sed -E '/<p class="p">/{:a; N; s/\n/ /g; /<\/p>/!ba;}' index.html

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wixjitnu2#

使用你展示的示例，请尝试以下awk代码。在记录分隔符中使用awk的段落模式。

awk -v RS=  '
match($0,/(^|\n)\<p .*\<\/p\>/){
  val=substr($0,RSTART,RLENGTH)
  gsub(/\n/," ",val)
  print substr($0,1,RSTART-1) val substr($0,RSTART+RLENGTH)
}
'  Input_file

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piv4azn73#

使用sed（可能无法在所有平台上工作）：sed -i.bak 's/\n$/ /g' index.html。请注意，sed将在此处执行更改之前备份您的文件。
可以使用tr代替sed，如下所示：tr '\n' ' ' .

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