How to purge Steam ppa completely

I have already purged Steam using apt-get. But I found some PPAs that I added when I installed Steam back then still exist. My questions are:

1. how to completely remove the PPAs related to Steam and
2. Is removing the PPAs enough to purge Steam from my system completely?

I listed the PPAs I added before using this command:

grep ^ /etc/apt/sources.list /etc/apt/sources.list.d/*

and here's part of the result:

/etc/apt/sources.list.d/steam.list.distUpgrade:deb [arch=amd64,i386] precise steam
/etc/apt/sources.list.d/steam.list.distUpgrade:deb-src [arch=amd64,i386] precise steam
/etc/apt/sources.list.d/steam.list.save:deb [arch=amd64,i386] precise steam
/etc/apt/sources.list.d/steam.list.save:deb-src [arch=amd64,i386] precise steam

How can I remove them? I tried ppa-purge by typing:

sudo ppa-purge steam

and it gives me the output:

Updating packages lists
PPA to be removed: steam ppa
Warning: Could not find package list for PPA: steam ppa

So what is wrong here?

Here's another question regarding the function of the PPAs stored in the directory /etc/apt/sources.list. Can I delete them directly? I manually removed some using this command but don't know if this is a good way to clean up:

sudo rm -i private-ppa.launchpad.net_commercial-ppa-uploaders_steam_ubuntu.list private-ppa.launchpad.net_commercial-ppa-uploaders_steam_ubuntu.list.distUpgrade private-ppa.launchpad.net_commercial-ppa-uploaders_steam_ubuntu.list.save 

Thanks a lot!

1 Answer

yes , you can manually remove steam related PPA file from /etc/apt/sources.list.d/ and related gpgkey from /etc/apt/trusted.gpg.d/.

or you can remove using command

sudo add-apt-repository --remove ppa:???/???

see my another answer how to remove PPA completely.

it will remove only steam PPA . if you want remove steam related package then you have to uninstall that packages.