- date: April 15, 2011
:~$ sudo apt-get install python-gdm2setup
[sudo] password for wolfy:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package python-gdm2setup
:~$ sudo add-apt-repository ppa:gdm2setup/gdm2setup
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv 33E1C2F5E880004C06B6696B1780999033C3C104
gpg: requesting key 33C3C104 from hkp server keyserver.ubuntu.com
gpg: key 33C3C104: public key "Launchpad GDM2Setup" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
:~$ sudo apt-get update
Hit http://ro.archive.ubuntu.com maverick Release.gpg
Ign http://ro.archive.ubuntu.com/ubuntu/ maverick/
LXer: How to safely remove PPA Repository from Ubuntu
location: linuxquestions.com - date: January 10, 2010
Published at LXer:
We sometimes find what we are looking for while searching for something completely different. This happened to me recently. I was searching for a way to fix some graphic performance issues being experienced on kubuntu, When I stumbled upon (no pun intended) a packaged named ppa-purge.
Remove ppa from list
location: ubuntuforums.com - date: January 10, 2012
W: Failed to fetch http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/oneiric/main/source/Sources 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
I get this when I do an `apt-get update` which keeps giving errors when the automatic update runs. I added it to install handbrake (obviously) but can't find out how to remove the two from the list.
Linux: remove file extensions for multiple files
location: linuxexchange.com - date: December 22, 2010
I have many files with .txt extension.
How to remove .txt extension for multiple files in linux?
I found that
rename .old .new *.old
substitutes .old extension to the .new
Also I want to do this for files in sub-folders.
Azure Linux remove and add another disk
location: linuxexchange.com - date: March 4, 2015
I had a need to increase the disk space, for my Linux azure, we attached a new empty disk and followed the steps here http://azure.microsoft.com/en-in/documentation/articles/virtual-machines-linux-how-to-attach-disk , the only difference is that the newly added deviceid was not found in /var/log/messages.
Now I need to add another disk, and we attached another disk, the problem is that for doing the first step of fdisk
sudo fdisk /dev/sdc
I have no idea where the recent disk is attached, total clueless, also what are the steps if i want to remove a disk altogether, I know umount will unmount a disk, but that doesn't neccessarily takes off the device from the instance, i want a total detachment.
Cannot remove ppa
location: ubuntuforums.com - date: February 2, 2011
I am having a slightly ridiculous problem where a ppa added cannot be removed.
The akirad repository, (deb http://ppa.launchpad.net/akirad/akirad/ubuntu maverick main) 404s, because, I assume, it does not have a maverick version, and causes my update manager to repeatedly inform me my sources are outdated, because it cannot be reached. Because I do not care one way or another about the repo, I attempted to remove it by deleting the sources.list.d/akirad.list* files. They magically reappeared.
I then tried visiting Synaptic -> Settings -> Repositories -> Other Sources, and selecting and deleting the akirad entries that way. Wooh, they have disappeared from /etc/apt/sources.list.d/!
And yet, the next thing I know, I am being told that akirad has 404ed, and my source list is out of date.
It seems that the repo is added again every time I reboot, but I only know that that's when I *notice* it.
Does anyone know what's going on, or how to stop it?
Linux remove text from file
location: linuxexchange.com - date: February 25, 2013
I want to write a command with removes an item from a file .todolist like that:
if [ "$task" == "- " ];
cat $path | grep -v $1 > $path
When I cat $path | grep -v $1 all works perfect but when I try writing back to the file it leaves the file empty. What am I doing wrong?
Linux Remove UART extra characters
location: linuxexchange.com - date: December 5, 2014
Working on linux, sending data to the serial port at 115200 bauds using:
echo -e "\x1B\x11\x00\x00" > /dev/ttyAMA0
The receiver side is reading the following data:
I dont want \xF8 as starting byte and \x0D\x0A as tails (carriage return and new line bytes).
How could I remove them? So far all I found is
stty raw -F /dev/ttyAMA0
This deactivates the \x0D, but i want to get rid of \xF8 and \x0A and no other options have worked for me.
Linux: Remove path from $PATH variable
location: linuxexchange.com - date: November 17, 2015
I'm not too familiar with Linux and have defined the same path in the $PATH variable 6 times. I wasn't logging out to check whether it worked.
How can I remove the duplicates?
The $PATH variable looks like this:
How would I reset it to just
remove old linux kernels
location: ubuntuforums.com - date: September 15, 2012
How does one remove the extra entries of the old linux kernels after upgrade of a new version. Remember Synaptic used to do that but it was the case when Startup manager used to do a good job. Please help if i'm missing something.
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