Ubuntu Tips & Tricks - WIP

Audio

• Ubuntu 14.04 does not contain the ffmpeg package any more. Its replacement is libav-tools package. In software, that expects ffmpeg to be able to deal with mp3 format, references to /usr/bin/ffmpeg should be replaced with /usr/bin/avconv.

Perl Packages

• Ubuntu 14.04 contains an obsolete Mojolicious version:

 perl -MMojolicious -e 'print Mojolicious->VERSION. "\n"'

    gives 4.63

This version, when using $c->delay, produces error:

 Can't locate object method "delay" via package "Mojolicious::Controller" at ...

  The latest one at the time of writing is 5.69.
  Installing the latest Mojolicious version fixes the problem:

  sudo cpanp install Mojolicious

Installation of the latest Go language version

• bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer)

• add the following line to  ~/.bashrc:   

                   [[ -s "$HOME/.gvm/scripts/gvm" ]] && source "$HOME/.gvm/scripts/gvm"

• cd; . ./.bashrc

• gvm version
• gvm install go1.4

• gvm use go1.4
• go version

• check if  /usr/local/bin/go exists and what it points to

                    sudo ln -s ~/.gvm/gos/go1.4/bin/go  /usr/local/bin/go

Condensed version of http://www.hostingadvice.com/how-to/install-golang-on-ubuntu/