command line

Ubuntu Missing add-apt-repository command

command line

Problem: apt-get-repository Command is Missing I was trying to install the latest version of git from the Ubuntu Git Maintainers Team and I needed to add a Personal Package Archive (PPA) to the Software Sources. But when I tried to do this, I got an error: Solution: Install the software-properties-common Package To get the add-apt-repository [...]

Read the full article →

Upgrading Ubuntu to Use the Latest Git Version

command line

Problem: Ubuntu Won’t Upgrade to the Latest Git Version I was running script that clone some git archives from GitHub and I got the following error: But when I tried to upgrade git, Ubuntu told me I already had the latest version: But I didn’t actually have the latest version. Solution: Add the Software Source [...]

Read the full article →

Setup WordPress or WPMU to make an atomic version switch — AND allow you to revert

apache

I have a new WordPress MU (WPMU) install and I am ready for my first upgrade. I couldn’t get automatic upgrade to work, and all the forums said: do it by hand manually. This is fine, but I didn’t want my site to be in flux with some old an some new files as I [...]

Read the full article →

How to keep the existing file attributes (owner, timestamp, etc) when copying files or directories

command line

When copying files and especially directories, sometimes you want to keep the existing file attributes. For example, you may likely want to keep the same owner, group, timestamp, etc. You can keep the attributes by using the preserve argument. preserve=all will keep everything: You can use the -p version of preserve to keep the default [...]

Read the full article →

How to Check the Ubuntu Version.

command line

How do you know which version of Ubuntu you are running? This will return something like this:

Read the full article →

How to rename a file or directory

command line

There is no rename function in Ubuntu Linux. Instead, you simply move the file, giving it a new name. If you don’t actually mv it to another directory, then you have effectively renamed it: If you are trying to rename a directory, you need to use the -r recursive flag:

Read the full article →

How to move or copy a directory

command line

I was trying to copy a directory, and I kept getting a cryptic error: cp: omitting directory `/var/log’ The copy (cp) command only works for files. To copy a directory, you need to use the -r recursive flag: In this case, I was trying to copy the log directory to make a quick and dirty [...]

Read the full article →

How to change your password from the command line

command line

To change your own password from the command line: To change the password for another user, you must use sudo:

Read the full article →

How to view the current time from the command line

command line

To see the current time from the Ubuntu or Linux command line: date which will give you: Fri May 30 15:53:21 EDT 2008 To see how to include and format dates and times in your shell scripts, see this post: http://www.lifeonubuntu.com/2008/05/how-to-format-dates-in-shell-scripts.html

Read the full article →