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I'm trying to automate creating vhosts on my computer. This is merely a learning experience for bash scripting. I'm currently novice. I'm trying to learn more about awk, sed.

No, this isn't homework. I work full-time.

Anyways, this is my conf file. What would be the most efficient way to find and replace from command line? I'll eventually replace some forms with tokens, like {DOMAIN} and {PATH}

NameVirtualHost commerce.l:*

<Directory "/home/chris/workspace/dev.commerce/html">
        Options Indexes Includes execCGI
        AllowOverride All
        Order Allow,Deny
        Allow From All
</Directory>

<VirtualHost commerce.l>
    DocumentRoot /home/chris/workspace/dev.commerce/html
    ServerName commerce.l
    ErrorLog logs/commerce.error
    <IfModule mod_rewrite.c>
        <Directory "/home/chris/workspace/dev.commerce/html">
            RewriteEngine on
            # needed by Drupal 7 for "clean URLs"
            RewriteCond %{REQUEST_FILENAME} !-f
            RewriteCond %{REQUEST_FILENAME} !-d
            RewriteCond %{REQUEST_URI} !=/favicon.ico
            RewriteRule ^ index.php [L]
        </Directory>
    </IfModule>
</VirtualHost>

P.S. I'm on Ubuntu 11.04 natty

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1 Answer 1

up vote 1 down vote accepted

This looks like a job for a here-document: include the template in your script, and use $variable_name when you want to substitute variables, or $(shell-command) to substitute the output of any shell command.

The here-document begins on the line after the marker <<EOF (you can replace EOF by any word) and ends on a line containing exactly EOF (no indentation allowed). Inside the template, the same characters are special as inside double quotes: "$`\ (note the backquote, which needs to be protected \`).

DOMAIN=commerce.l
PATH=/home/chris/workspace/dev.commerce/html
cat >>/etc/apache/sites-available/$DOMAIN
NameVirtualHost $DOMAIN:*

<Directory "$PATH">
…
</VirtualHost>
EOF
share|improve this answer
    
Do you know of any other web resources relating to this? I'm trying to find some good examples. –  chrisjlee Jun 30 '11 at 14:26
    
@Chris Read the Wikipedia article and your shell's manual and your favorite shell book. Google for “here document” or “heredoc”. –  Gilles Jun 30 '11 at 15:58

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