Create file with contents from shell script

How do I, in a shell script, create a file called foo.conf and make it contain:

NameVirtualHost 127.0.0.1

# Default
<VirtualHost 127.0.0.1>
ServerName localhost
DocumentRoot "C:/wamp/www"
</VirtualHost>

Use a "here document":

cat > foo.conf << EOF
NameVirtualHost 127.0.0.1

# Default
<VirtualHost 127.0.0.1>
ServerName localhost
DocumentRoot "C:/wamp/www"
</VirtualHost>
EOF

You can do that with echo:

echo 'NameVirtualHost 127.0.0.1

# Default
<VirtualHost 127.0.0.1>
ServerName localhost
DocumentRoot "C:/wamp/www"
</VirtualHost>' > foo.conf

Everything enclosed by single quotes are interpreted as literals, so you just write that block into a file called foo.conf. If it doesn't exist, it will be created. If it does exist, it will be overwritten.

a heredoc might be the simplest way:

cat <<END >foo.conf
NameVirtualHost 127.0.0.1

# Default
<VirtualHost 127.0.0.1>
ServerName localhost
DocumentRoot "C:/wamp/www"
</VirtualHost>
END