sample `.bash_profile` (originally) 2015 edition, contains some snippets that will qualify as still-relevant-in-2021

.bash_profile

export PATH=/usr/local/bin:$PATH
export PATH=/usr/bin:$PATH
export PATH=/Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin:$PATH
export PATH=/Applications/Sublime\ Text.app/Contents/SharedSupport/bin:$PATH
export PATH=$HOME/mongodb/bin:$PATH
export PATH=$HOMEredis/src:$PATH
export PATH=$HOME/apache-tomcat-8.0.36/bin:$PATH
export PATH=$HOME/apache-maven-3.3.9/bin:$PATH

# if you are using nvm, you will have to
# set this path each time you change your node version
export PATH=$HOME/.nvm/versions/node/v15.0.1/bin/node:$PATH

# when you defy npm and install lerna using yarn
export PATH=$HOME/.config/yarn/global/node_modules/.bin/lerna:$PATH
export PATH=$HOME/.yarn/bin:$PATH

# mysql
export PATH=/usr/local/mysql/bin:$PATH



# chromium - depot_tools
export PATH=$HOME/Projects/depot_tools:$PATH

# enabling gitk
export PATH=/usr/local/git/bin:$PATH
export PATH=/Applications/sqlite-tools-osx-x86-3140200:$PATH

export M2_HOME=$HOME/apache-maven-3.3.9
export M2=$HOME/apache-maven-3.3.9/bin
export MAVEN_OPTS="-Xmx1048m -Xms256m -XX:MaxPermSize=312M"
# export JAVA_HOME=/usr/
# export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/jre

# From Arushi
export JAVA_HOME=$(/usr/libexec/java_home)
# echo $(/usr/libexec/java_home)
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home


# The next line updates PATH for the Google Cloud SDK.
if [ -f $HOME/Downloads/google-cloud-sdk/path.bash.inc ]; then
  source '$HOME/Downloads/google-cloud-sdk/path.bash.inc'
fi

# The next line enables shell command completion for gcloud.
if [ -f $HOME/Downloads/google-cloud-sdk/completion.bash.inc ]; then
  source '$HOME/Downloads/google-cloud-sdk/completion.bash.inc'
fi


# PATH for the Google Cloud SDK (manual)
export PATH=$HOME/Downloads/google-cloud-sdk/bin/:$PATH

# example
alias lh='ls -lah'

# npm caching
alias npmi='sudo npm install --cache-min Infinity'
alias npmis='sudo npm install --save --cache-min Infinity'

# execute this to reload
# source ~/.bash_profile