docker usr/local/bin/docker-machine: Permission denied
I got this error when trying to install docker on my ubuntu using the curl command. The issue is that your current user does not have the permission to write to the /usr/local/bin/ directory....
Monthly Archive: July 2016
How to completely uninstall docker from ubuntu
If you need a fresh start and completely uninstall docker, just run the following commands[source]. sudo apt-get purge docker-engine sudo apt-get autoremove –purge docker-engine rm -rf /var/lib/docker # This deletes all images, containers, and...
Rails activerecord get Model. all using an order by
By default, when you do Model.all in rails, it returns data based on whatever order was returns by the database. But sometimes thats not what you want. For example, if I had a model...
How to see the sql statements for rails commands
Just type the following command in your rails console to see the sql output of your rails commands ActiveRecord::Base.logger = Logger.new(STDOUT) NOTE: You will probably have to do this for every session. To avoid that, add...
Capybara find_field to find a disabled field
By default find_field in capybara only finds an enabled field. To find a disabled field, you can pass in a second argument as an options hash. For example, to find a field that is...
rename extension of multiple files linux
I recently wanted to rename all my jpg files to png files in one folder on my ubuntu device. The following command did the trick for me. rename ‘s/.jpg$/.png/’ *.jpg
How to identify chromebook in google analytics
You will need to add events tracking to your site. If your site has visitors from the chromebox it will appear at the following place in Google Analytics Reporting -> Behavior -> Events ->...
How to cut/edit/trim videos in vlc on mac?
Follow three simple steps to trim a video in vlc : 1) Set the default directory location where you want to store the trimmed video by going to Go to VLC Preferences —> Input...
Create a new mysql user and grant all privileges to them on a database
The following command will create a new user and grant them all the permissions on a database. grant all privileges on database_name.* to ‘username’@’localhost’ identified by ‘secure_password’; To list the permissions granted to a...
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