Append to beginning and ending of each line?

Question

I'm working on a sed script that creates a HTML file. I want to append paragraph tags to the beginning and ending of each line but can't figure out how that would work.

Right now I have the following sed script:

1i\
<html>\
<head><title>sed generated html</title></head>\
<body>\
<pre>
$a\
</pre>\
</body>\
</html>

How would I be able to enclose every line in a  and  tag?

Example:

test.txt

This is a test file.
This is another line in the test file.

Output with the sed script:

<html>
<head><title>sed generated html</title></head>
<body>
<pre>
<p>This is a test file.</p>
<p>This is another line in the test file.</p>
</pre>
</body>
</html>

See http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1732454#1732454 — jub0bs, Mar 23 '15 at 07:34

Arjun Mathew Dan · Answer 1 · 2015-03-23T04:35:35.820

With sed:

Change your script to:

1i\
<html>\
<head><title>sed generated html</title></head>\
<body>\
<pre>
s/.*/<p>&<\/p>/
$a\
</pre>\
</body>\
</html>

Same as your command, but added s/.*/&<\/p>/. Surround each line in file with  and . Use command sed -f script File

With awk:

cat script

BEGIN {
printf "<html>\n\
<head><title>sed generated html</title></head>\n\
<body>\n\
<pre>\n"
}
{print "<p>"$0"</p>"}
END {
printf "</pre>\n\
</body>\n\
</html>\n"
}

cat File

This is a test file.
This is another line in the test file.

Command:

awk -f script File

Sample:

AMD$ awk -f script File
<html>
<head><title>sed generated html</title></head>
<body>
<pre>
<p>This is a test file.</p>
<p>This is another line in the test file.</p>
</pre>
</body>
</html>

Append to beginning and ending of each line?

1 Answers1