[英]shell script to Find a particular Pattern in repetitive data a file . and add new blank line before matched pattern
[英]Linux add new line before and after a matched pattern
我想在HTML文件中的“ <腳本”之前和</ script>標記之后放置換行符。
sed 's/<script/\'$'\n/g'
我嘗試了一個,但是刪除了“腳本”標簽。
輸入樣例:
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>JavaScript Ders 2</title> <script type="text/javascript" src="script.js" language="javascript"></script> <script type="text/javascript" src="script.js" language="javascript"></script> <script></script> </head><body> <script type="text/javascript" src="script.js" language="javascript"></script> </body></html>
樣本輸出:
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>JavaScript Ders 2</title>
<script type="text/javascript" src="script.js" language="javascript">
</script>
<script type="text/javascript" src="script.js" language="javascript">
</script>
<script>
</script>
</head><body>
<script type="text/javascript" src="script.js" language="javascript">
</script>
</body></html>
我該怎么辦?
謝謝
由於您尚未發布任何示例,因此無法對其進行測試,因此,請您可以嘗試按照以下說明告訴我。
sed 's/<script>/\n&/;s/<\/script>/&\n/' Input_file
假設以下是Input_file:
cat Input_file
<script>
fewvfewvvew
</script>
abcd
然后,在執行代碼之后,我們將獲得以下輸出。
<script>
fewvfewvvew
</script>
abcd
我假設您只是這樣做以使其更易於閱讀,而不是嘗試使用sed格式化HTML ...
要在<script
和</script
之前添加換行符(假設您的sed版本理解\\n
):
sed -E 's|</?script|\n&|g' file
匹配</?script
( /?
使/
可選)並替換為換行符,后跟完整匹配&
。
它與您問題中的輸出不太匹配,因為您似乎想將每個開始/結束<script>
標記放在自己的行上,而不是僅插入行:
$ sed -E 's|</?script|\n&|g' file
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>JavaScript Ders 2</title>
<script type="text/javascript" src="script.js" language="javascript">
</script>
<script type="text/javascript" src="script.js" language="javascript">
</script>
<script>
</script> </head><body>
<script type="text/javascript" src="script.js" language="javascript">
</script> </body></html>
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