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Can sed replace every 2 instances it finds in a file? Pattern.

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# 1  
Old 03-06-2010
Java Can sed replace every 2 instances it finds in a file? Pattern.
My goal is to make a script to find/replace the variable "PORT" with a unique number.

Like the following

Code:
<VirtualHost 174.120.36.236:PORT>
    ServerName architect.com.ph
    ServerAlias www.architect.com.ph
    DocumentRoot /home/architec/public_html
    ServerAdmin webmaster@architect.com.ph
    UseCanonicalName Off
    CustomLog /usr/local/apache/domlogs/architect.com.ph combined
    CustomLog /usr/local/apache/domlogs/architect.com.ph-bytes_log "%{%s}t %I .\n%{%s}t %O ."
    ## User architec # Needed for Cpanel::ApacheConf
    <IfModule mod_suphp.c>
        suPHP_UserGroup architec architec
    </IfModule>
    <IfModule !mod_disable_suexec.c>
        SuexecUserGroup architec architec
    </IfModule>
    ScriptAlias /cgi-bin/ /home/architec/public_html/cgi-bin/


    # To customize this VirtualHost use an include file at the following location
    # Include "/usr/local/apache/conf/userdata/std/2/architec/architect.com.ph/*.conf"

</VirtualHost>

        backend architect.com.ph {
                set backend.host = "architect.com.ph";
                set backend.port = "PORT";
        }

The problem is that inside this file there are hundreds of virtualhosts, and other config files.

I am wondering if sed can go through a pattern of every 2 instances it finds of "PORT" to be replaced with a unique number, or better yet sequential, is this possible?

Thanks
# 2  
Old 03-06-2010
Do you mean you want to ignore the port in: -

Code:
<VirtualHost 174.120.36.236:PORT>

and just change the one in quotes: -

Code:
set backend.port = "PORT";

If so couldn't you just change the PORT on lines containing backend.port?
# 3  
Old 03-06-2010
No, I want to replace both of them.

That is why I wanted it in a pattern, for every 2 instances it finds the word "PORT" to replace it with a unique number, and every 2 instances it finds to replace it with a unique number, and so forth.

Thanks
# 4  
Old 03-06-2010
Something like:
Code:
sed 's/PORT/99999/g' file

# 5  
Old 03-06-2010
That is going to replace all instances, i dont want that. i want it to replace every two instances it finds of PORT . That is my dilema right now.

Thanks

---------- Post updated at 02:28 PM ---------- Previous update was at 02:28 PM ----------

That is going to replace all instances, i dont want that. i want it to replace every two instances it finds of PORT . That is my dilema right now.

Thanks
# 6  
Old 03-06-2010
Quote:
Originally Posted by EXT3FSCK
That is going to replace all instances, i dont want that. i want it to replace every two instances it finds of PORT . That is my dilema right now.
Thanks
Which 2 instances? The first 2 instances, the second 2...?
# 7  
Old 03-06-2010
Pretend this file has thousands of instances that say PORT

I want it to replace every two instances it finds that say PORT with a unique number. None are the same so incremental is fine. But every time it find two instances of PORT to replace those two, then move on to the next two, and so forth.

Is such possible?

---------- Post updated at 02:36 PM ---------- Previous update was at 02:36 PM ----------

Pretend this file has thousands of instances that say PORT

I want it to replace every two instances it finds that say PORT with a unique number. None are the same so incremental is fine. But every time it find two instances of PORT to replace those two, then move on to the next two, and so forth.

Is such possible?
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