My ~/.bashrc that I use on OSC systems

bashrc

# .bashrc

function source_if_exists() {
  if [ -f $1 ]; then
     . $1
  fi
}

# cat file descriptors (1 and 2, stdout and stderr)
function cfd() {
  cat /proc/$1/fd/1 /proc/$1/fd/2
}

# tail -f file descriptors (1 and 2, stdout and stderr)
function tfd() {
  tail -f /proc/$1/fd/1 /proc/$1/fd/2
}

function emoji(){
  emojis=(<U+1F436> <U+1F43A> <U+1F431> <U+1F42D> <U+1F439> <U+1F430> <U+1F438> <U+1F42F> <U+1F428> <U+1F43B> <U+1F437> <U+1F42E> <U+1F435> <U+1F43C> <U+1F427> <U+1F40D> <U+1F422> <U+1F419> <U+1F420> <U+1F433> 
<U+1F42C> <U+1F425>)
  echo ${emojis[$RANDOM % 22]}
}

function git_branch(){
  git rev-parse --abbrev-ref HEAD 2> /dev/null
}

function load_modules(){
  modules=( 'git' 'project/ondemand' 'project/classes' "ruby/$RUBY_VERSION")
  #modules+=('python/3.7-2019.10')
  #modules=('python/3.6-conda5.2')
  #modules+=('python/3.7-2019.10')
  modules+=('gnu/9.1.0' 'mkl/2019.0.5') # R/4.0.2
  module purge 2>/dev/null
  module restore 2>/dev/null
 
  for mod in ${modules[@]}
  do
    module load $mod 2>/dev/null
  done
}

function pit() {
  if [ -n "$1" ]; then
    DEST="pitzer-login0$1.hpc.osc.edu"
  else
    DEST=pitzer.osc.edu
  fi

  ssh johrstrom@$DEST
}


# Source global definitions
source_if_exists /etc/bashrc

source_if_exists /opt/rh/rh-ruby27/enable
source_if_exists /opt/rh/rh-nodejs12/enable
source_if_exists /opt/rh/rh-git29/enable
#source_if_exists $HOME/.local/etc/lmods
#source_if_exists $HOME/.Renviron


export RUBY_VERSION="2.7.1"
#export RUBY_VERSION="2.5.5"
load_modules

alias jobs='qstat -ujohrstrom'
alias logs='tail -f  /var/log/ondemand-nginx/johrstrom/*.log'
alias maya='singularity exec $MAYA_IMG'
alias cbc="cd /users/PZS0714/johrstrom/ondemand/data/sys/dashboard/batch_connect/sys"
alias pip="python -m pip"
alias herstory="history"
alias gs='git status'

export PATH="$HOME/bin:$HOME/.local/bin:$PATH"
export PATH="$PATH:$HOME/.gem/ruby/bin"
#export LANG='en_US.UTF-8'
export JULIA_DOWNLOAD="$HOME/.julia/packages/IJulia"
#export R_LIBS_USER="$HOME/R/test/%V"
#export LD_LIBRARY_PATH="/usr/lib:/usr/lib64:/lib:/lib64:$LD_LIBRARY_PATH"
#export SINGULARITYENV_LD_LIBRARY_PATH=$LD_LIBRARY_PATH
#export SINGULARITY_BINDPATH=/etc,/media,/mnt,/run,/srv,/usr,/var,/users,/opt
export GEM_HOME="$HOME/.gem/ruby"

#export GIT_COMMITTER_NAME="Jeff Ohrstrom"
#export GIT_COMMITTER_EMAIL="johrstrom@osc.edu" 

export NUM_USR='15'
#export PS1="\[\033[0;36m\][\u@\h \T \W(\$(git_branch))] \$(emoji) \[\e[0m\] "
#export PS1="[\W \$(emoji)]$ "
export PS1="\[\033[0;36m\][\u \W(\$(git_branch))] \$(emoji) \[\e[0m\] "

#export XDG_CONF_DIRS="/tmp"
export OOD_TEMPLATE_DIR="$HOME/ondemand/misc/osc-ood-config"
export PRJ="/fs/project/PZS0714/johrstrom"

# activate the conda environment
#source activate bc-desktop

# testing R
R_SRC="$HOME/src/R"
R_SITE="$R_SRC/site"
R_4="$R_SRC/R-4.0.3"
export PATH="$R_4/bin:$R_SITE/bin:$PATH"
export LD_LIBRARY_PATH="$R_4/lib:$R_SITE/lib:$HOME/:$LD_LIBRARY_PATH"
export PKG_CONFIG_PATH="$R_SITE/include:$PKG_CONFIG_PATH"

unset LD_PRELOAD