From apt-key sources, you can set APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE to a non-empty value to disable this warning. You can also use “grep -q” so you don’t need to redirect stdout in /dev/null either.
I found several posts telling me to run several gpg commands, but they didn’t solve the problem because of two things. First, I was missing the debian-keyring package on my system and second I was using an invalid keyserver. Try different keyservers if you’re getting timeouts! Thus, the way I fixed it was: apt-get install … Read more
I faced this problem with a broken package, rvm. I tried many things like sudo apt install -f and sudo dpkg –purge –force-all rvm but nothing worked. Finally I managed to find a blog post that explains how to remove broken packages on Debian/Ubuntu. Here are the steps. Find your package in /var/lib/dpkg/info, for example … Read more
The simplest solution that worked for me was from Emre Sahin in this thread: sudo apt-key adv –keyserver keyserver.ubuntu.com –recv-keys E084DAB9
Per Debian policy, python refers to Python 2 and python3 refers to Python 3. Don’t try to change this system-wide or you are in for the sort of trouble you already discovered. Virtual environments allow you to run an isolated Python installation with whatever version of Python and whatever libraries you need without messing with … Read more
UPDATE: You have wrong capitalization of environment variables in ENV. Correct one is http_proxy. Your example should be: FROM ubuntu:13.10 ENV http_proxy <HTTP_PROXY> ENV https_proxy <HTTPS_PROXY> RUN apt-get update && apt-get upgrade or FROM centos ENV http_proxy <HTTP_PROXY> ENV https_proxy <HTTPS_PROXY> RUN yum update All variables specified in ENV are prepended to every RUN command. … Read more
Ubuntu 16.04 comes with PHP7 as the standard, so there are no PHP5 packages However if you like you can add a PPA to get those packages anyways: Remove all the stock php packages List installed php packages with dpkg -l | grep php| awk ‘{print $2}’ |tr “\n” ” ” then remove unneeded packages … Read more
The package node is not related to node.js. nodejs is what you want, however it is arguably better to have the command be called node for compatibility with scripts that use #!/usr/bin/env node. You can either just create a symlink in your path: sudo ln -s `which nodejs` /usr/local/bin/node Or you could install nvm and … Read more
Solution Run: $ sudo apt update Note this is apt and not apt-get Then enter y to accept the change: E: Repository ‘http://dl.google.com/linux/chrome/deb stable Release’ changed its ‘Origin’ value from ‘Google, Inc.’ to ‘Google LLC’ N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details. Do … Read more
From the official Node.js documentation: A Node.js package is also available in the official repo for Debian Sid (unstable), Jessie (testing) and Wheezy (wheezy-backports) as “nodejs”. It only installs a nodejs binary. So, if you only type sudo apt-get install nodejs , it does not install other goodies such as npm. You need to type: … Read more