Remove white spaces in HTML files using shell : Possible????????

cpanelskindepot · 08-05-2004, 10:16 PM

Hi guys.

I wanted to compress my HTML files automatically using a shell script. I wonder if this is possible.

Say I have:
<HTML>
<HEAD>
<TITLE>Example Web Page</TITLE>
</HEAD>
<body>
You have reached this web page by typing example.com,
example.net,
or example.org into your web browser.
These domain names are reserved for use in documentation and are not available
for registration. See <a href="http://www.rfc-editor.org/rfc/rfc2606.txt">RFC
2606</a>, Section 3.
</BODY>
</HTML>

I want to run a shell script so that it becomes:

<HTML><HEAD><TITLE>Example Web Page</TITLE></HEAD> <body>You have reached this web page by typing example.com,
example.net,
or example.org into your web browser.These domain names are reserved for use in documentation and are not available
for registration. See <a href="http://www.rfc-editor.org/rfc/rfc2606.txt">RFC
2606</a>, Section 3.</BODY></HTML>

I wanted all the HTML squeezed together.
The only way I can think of it to detect the white spaces between > and < then get rid of them. I will be careful not to delete whitespaces between texts. i.e. Youhavereachedthiswebpage

Is this possible?
There must be some way to do it I think.

arvind_sv · 08-05-2004, 10:51 PM

Suppose you have the html file, test.html, which you want to, er, compress, how about this?

Code:

tr -s '\n' @ <test.html | sed 's/>@</></g' | tr '@' '\n'

There are many other ways to do this. But, are you ready to sacrifice readability for a few bytes? I mean, there's no compression being done. You're saving nearly nothing. If it's a 1000 line HTML file, you'd be saving a maximum of about 1KB. Is it worth it?

Anyway, to be safer, so that an @ in the html file itself does not cause any problems, try this:

Code:

tr -s '\n' '\200' <test.html | sed 's/>\o200</></g' | tr '\200' '\n'

Arvind

arvind_sv · 08-05-2004, 11:14 PM

Here's an awk version of the same,

Code:

awk 'BEGIN {RS = ">\n+<"} {if (/.*HTML>/ != 0) print; else printf "%s><", $0;}' test.html

A simpler version:

Code:

awk 'BEGIN {RS = ">\n+<"} {printf "%s><", $0;}' test.html

This has a small flaw in that it prints an extra "><" at the end of the file.

Arvind