Where is Ruby getting added to my $PATH? - ruby

Question

I’m using Mac Yosemite with bash shell. I had installed Ruby 2.2.1 but then wanted to upgrade it, so I installed Ruby 2.3.0. However, when I restart my terminal, my old Ruby installations in my PATH …
Daves-MacBook-Pro-2: davea$ echo $PATH
/Users/davea/.rvm/gems/ruby-2.2.1/bin:/Users/davea/.rvm/gems/ruby-2.2.1#global/bin:/Users/davea/.rvm/rubies/ruby-2.2.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/mysql/bin/:/opt/gradle-2.7/bin:/opt/apache-maven-3.3.3/bin:/Users/davea/.rvm/bin:/usr/local/mysql/bin
I can’t figure out how this part of my PATH is getting set. I have checked these files on my system
/etc/profile
/etc/bashrc
~/.profile
~/.bash_profile
But I don’t see references to Ruby 2.2.1 anywhere. Below are the files’ content. Are there any other files I should check to find references to the $PATH?
/etc/profile
# System-wide .profile for sh(1)
if [ -x /usr/libexec/path_helper ]; then
eval `/usr/libexec/path_helper -s`
fi
if [ "${BASH-no}" != "no" ]; then
[ -r /etc/bashrc ] && . /etc/bashrc
fi
JBOSS_HOME=/opt/wildfly-10.0.0.CR2
M2_HOME=/opt/apache-maven-3.3.3
CATALINA_HOME=/opt/apache-tomcat-6.0.44
GRADLE_HOME=/opt/gradle-2.7
PATH=$PATH:/usr/local/mysql/bin/:$GRADLE_HOME/bin:$M2_HOME/bin
/etc/bashrc
# System-wide .bashrc file for interactive bash(1) shells.
if [ -z "$PS1" ]; then
return
fi
PS1='\h:\W \u\$ '
# Make bash check its window size after a process completes
shopt -s checkwinsize
# Tell the terminal about the working directory at each prompt.
if [ "$TERM_PROGRAM" == "Apple_Terminal" ] && [ -z "$INSIDE_EMACS" ]; then
update_terminal_cwd() {
# Identify the directory using a "file:" scheme URL,
# including the host name to disambiguate local vs.
# remote connections. Percent-escape spaces.
local SEARCH=' '
local REPLACE='%20'
local PWD_URL="file://$HOSTNAME${PWD//$SEARCH/$REPLACE}"
printf '\e]7;%s\a' "$PWD_URL"
}
PROMPT_COMMAND="update_terminal_cwd; $PROMPT_COMMAND"
fi
~/.profile
export JBOSS_HOME=$JBOSS_HOME
export PATH="$PATH:$HOME/.rvm/bin" # Add RVM to PATH for scripting
MYSQL=/usr/local/mysql/bin
export PATH=$PATH:$MYSQL
export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:$DYLD_LIBRARY_PATH
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*
~/.bash_profile
[[ -s "$HOME/.profile" ]] && source "$HOME/.profile" # Load the default .profile
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*

Answer 1

RVM is setting up Ruby and related PATHS for you.
To get 2.3 run this
rvm --default use 2.3.0