Linux add new line before and after a matched pattern
Question
I want to put newline before "< script" and after < /script> tags in an HTML file.
sed 's/<script/\'$'\n/g'
I tried that one but it deleted "script" tags.
Sample input:
<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>
Sample output:
<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>
What I have to do?
Thanks
2 answers
solution1
0 2018-07-18 15:34:51
Since you haven't posted any samples so couldn't test it, could you please try following and let me know then.
sed 's/<script>/\n&/;s/<\/script>/&\n/' Input_file
Let's say following is Input_file:
cat Input_file
<script>
fewvfewvvew
</script>
abcd
Then after executing code we will get following output then.
<script>
fewvfewvvew
</script>
abcd
solution2
0 ACCPTED 2018-07-18 16:05:41
I'm assuming you're just doing this to make it easier to read, rather than attempting to format HTML using sed...
To add newlines before <script and </script (assuming that your version of sed understands \\n ):
sed -E 's|</?script|\n&|g' file
Match </?script ( /? makes the / optional) and replace with a newline, followed by the full match & .
It doesn't quite match the output in your question since it looks like you want to put each opening/closing <script> tag on its own line, rather than just insert lines:
$ 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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