When you are installing application on ubuntu, you may get this error: Unable to lock the administration directory (/var/lib/dpkg/). In this tutorial, we will tell you how to fix this error.
If you are installing ubuntu operation from computer disk, you may get an error: Failed to unmount /isodevice Partition. How to fix this error in order to continue to install.
After you have updated python pip, you may get this import error: ImportError: cannot import name main. In this tutorial, we will introduce you how to fix it.
When you are using apt-get command on ubuntu, you may get Unable to lock directory /var/cache/apt/archives/ error. In this tutorial, we will tell you how to fix this error.
Delete files and directories are common operations on ubuntu. In this tutorial, we will introdue how to delete them for ubuntu beginners.
Sometimes, you may forget your password and can not login into ubuntu. You may want to retrieve password, however, it can not work in ubuntu system, you can only reset a new one. In this tutorial, we will introduce how to reset a forgotten password for users in order to make them can login into their system.
Passwd command can allow us to change user password, however, we often may find Authentication token manipulation error when changing, which cause us not to change new password for user. In this tutorial, we will introduce how to fix this error and update new password for user.
When you are using putty to control a remote ubuntu system, you may want to konw how to restart it when you have made some changes. In this tutorial, we will introduce you how to restart ubuntu by putty.
In this tutorial, we will introduce some useful operations on mysql, apache on ubuntu vps, you can follow our steps to save your some time to manage your vps.
We often train our deep learning models in linux, one of problems we often concern is how much space of memory left in system. In this tutorial, we will introduce you how to see free space of memory in linux.