Replacing IP Address in Apache2 config files with SED

replacing ip address in all files with linux sedSuppose i just mirrored my vps machine (starting from a clone and then rsync-ing all needed files) with rsync. Obviously i need to change the IP Address value contained into all the config files, but I’m lazy.
So, let’s use “SED” to do it at once, with a single line command.
I need to replace the IP Address “192.168.100.5” with “192.168.100.4” in all files contained in /etc/apache2/*

Our command for one file should be:

$ sed -i 's/192.168.100.5/192.168.100.4/g' /etc/apache2/sites-available/default

We want to do it on a bounce of files that contain that string, but unfortunately SED can’t accept wildcard chars so we need run it through a loop.
For this purpose we can use the linux FIND utility so we will end up with sed within this loop. The command should look like this:

$ find /etc/apache2/sites-available/ -type f -exec sed -i 's/192\.168\.100\.4/192\.168\.100\.5/g' {} \;

And while we are here, let’s say that if you manage to obtain the backup machine from a clone of the production machine and you are mantaining the filesystem in sync, this is what you should do with relevant files once you have finished to sync.

Happy xmas!

Ciao 

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Author: Giuseppe Urso

Giuseppe lives in Haarlem now with his shiny dog, Filippa
In 1982 received his first home computer, a Commodore 64, followed by Datasette and a 1541 Floppy Disk Drive.
In 1999 he installed his first Linux distro (LRH6).
In 2006 he switched to Debian as favourite OS. Giuseppe Urso actively sustains the Free Software Fundation and his founder Richard Mattew Stallman, he speaks to people trying to convince them to join the fight now, and about how important is to use Free Software only.
He has a job as Infra Specialist at Hippo Enterprise Java Cms an Open Source Enterprise class Content Management System, one of the coolest company ever, in Amsterdam. He’s always ready to install Debian on other people computers for free.

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