Replace text with hostname script?

Question

I need to change the same file on multiple servers and replace it with the hostname of the server.

sed -i 's/localhost/myhostname/g' /var/www/config.php

Is what I currently do.

How would I turn it into a script so that it will automatically check what the servers hostname is and replace "myhostname" with the servers hostname?

John Kugelman · Accepted Answer · 2014-11-21 03:18:30Z

6

Switch to double quotes and you can add a variable or command substitution.

sed -i "s/localhost/$HOSTNAME/g" /var/www/config.php
sed -i "s/localhost/$(hostname)/g" /var/www/config.php

answered Nov 21, 2014 at 3:18

John Kugelman

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