I had the same issue on Ubuntu 17.04. This solution worked for me: sudo apt remove cmdtest sudo apt remove yarn curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add – echo “deb https://dl.yarnpkg.com/debian/ stable main” | sudo tee /etc/apt/sources.list.d/yarn.list sudo apt-get update sudo apt-get install yarn -y then yarn install result: yarn install v1.3.2 warning You … Read more
I recommend GPick: sudo apt-get install gpick Applications -> Graphics -> GPick It has many more features than gcolor2 but is still extremely simple to use: click on one of the hex swatches, move your mouse around the screen over the colours you want to pick, then press the Space bar to add to your … Read more
You have */30 in the minutes specifier – that means every minute but with a step of 30 (in other words, every half hour). Since cron does not go down to sub-minute resolutions, you will need to find another way. One possibility, though it’s a bit of a kludge(a), is to have two jobs, one … Read more
.bashrc is not sourced when you log in using SSH. You need to source it in your .bash_profile like this: if [ -f ~/.bashrc ]; then . ~/.bashrc fi
Docker images are pretty minimal, but you can install ping in your official ubuntu docker image via: apt-get update apt-get install iputils-ping Chances are you don’t need ping on your image, and just want to use it for testing purposes. Above example will help you out. But if you need ping to exist on your … Read more
A solution would be to force the key files to be kept permanently, by adding them in your ~/.ssh/config file: IdentityFile ~/.ssh/gitHubKey IdentityFile ~/.ssh/id_rsa_buhlServer If you do not have a ‘config’ file in the ~/.ssh directory, then you should create one. It does not need root rights, so simply: nano ~/.ssh/config …and enter the lines … Read more
You can use apt-get command (requires sudo) sudo apt-get install libboost-all-dev Or you can call aptitude search boost find packages you need and install them using the apt-get command.
The current best practice is: docker system prune Note the output from this command prior to accepting the consequences: WARNING! This will remove: – all stopped containers – all networks not used by at least one container – all dangling images – all dangling build cache Are you sure you want to continue? [y/N] In … Read more
You want to use backtick, not regular tick: sudo kill -9 `sudo lsof -t -i:9001` If that doesn’t work, you could also use $() for command interpolation: sudo kill -9 $(sudo lsof -t -i:9001)