Browse Moodle Solutions

Note: This is an old question and the answers reflect the world as it was then. Modern Ubuntu distributions have OpenJDK available which can be installed with...

I apparently have a `redis-server` instance running because when I try to start a new server by entering `redis-server`, I'm greeted with the following:...

I have a docker container with some processes (uwsgi and celery) running inside. I want to create a celery user and a uwsgi user for these processes as well as...

I have two files: `file1` and `file2`. How do I append the contents of `file2` to `file1` so that contents of `file1` persist the process?

NodeJS interpreter name(`node`) on Ubuntu has been renamed to `nodejs` because of a name conflict with another package. Here's what the readme. Debian says:...

How can I find where my `httpd.conf` file is located? I am running an Ubuntu Linux server from the Amazon Web Services EC2 (Elastic Compute Cloud) and I can&...

When I ssh into my ubuntu-box running Hardy 8.04, the environment variables in my `.bashrc` are not set. If I do a source `.bashrc`, the variables are proper...

<!-- language-all: lang-none --> My problem started off with me not being able to log in as root any more on my mysql install. I was attempting to run...

Using the `clear` command on the terminal only fools the user into thinking the screen has been cleared...you can still see output from the previous commands wh...

I have a cron job that I need to run every 30 seconds: */30 * * * * /bin/bash -l -c 'cd /srv/last_song/releases/20120308133159 && script/rail...

I want to copy a file from remote to local system. Now I'm using scp command in linux system. I have some folders or files names are with spaces, when I try...

I'm having difficulty installing lxml with easy_install on Ubuntu 11. When I type `$ easy_install lxml` I get: Searching for lxml Reading htt...

I have both `python2.7` and `python3.2` installed in `Ubuntu 12.04`. The symbolic link `python` links to `python2.7`. When I type: sudo pip install...

I'm looking for a simple and easy to use color picker utility on Ubuntu/Debian.

I'm trying to build some code on Ubuntu 10.04 LTS that uses OpenSSL 1.0.0. When I run make, it invokes g++ with the "-lssl" option. The source i...

I installed nodejs on ubuntu from instructions given [here][1] When I write `node --version` in the terminal I see this : <br> `-bash: /usr/sbin/node:...

I am trying to do a `go get`: go get github.com/go-sql-driver/mysql and it fails with the following error: package github.com/go-sql-driver/mys...

Is it possible in Linux command line to have a command repeat every *n* seconds? Say, I have an import running, and I am doing ls -l to check if th...

When I run `docker-compose up` in my Docker project it fails with the following message: > Error starting userland proxy: listen tcp 0.0.0.0:3000: bind: a...

I've recently been playing around with Docker and QGIS and have installed a container following the instructions in [this tutorial](http://kartoza.com/qgis-...