Bash profile script for seamless installation, loading and execution of nvm (Node Version Manager) at once. Supports custom NVM_DIR, --no-use, nvm unload, etcetera. Install as /etc/profile.d/nvm.sh to make available globally on your Unix system.

nvm.sh

function _nvm {
  local DO_RUN=yes
  unalias nvm
  if [ "`type -t nvm`" != "function" ] ; then
    NVM_DIR="${NVM_DIR:-${ORIG_NVM_DIR:-$HOME/.nvm}}"
    ORIG_NVM_DIR="$NVM_DIR"
    if [ ! -d "$NVM_DIR" ] ; then
      mkdir "$NVM_DIR"
      TMPPROFILE="${NVM_DIR}.tmp"
      touch "$TMPPROFILE"
      curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh |\
      NVM_DIR="$NVM_DIR" PROFILE="$TMPPROFILE" bash
      /bin/rm -f "$TMPPROFILE"
      unset TMPPROFILE
    fi
    source "$NVM_DIR/nvm.sh" "$@"
    [ "$1" = "--no-use" ] && shift
    [ $# -eq 0 ] && DO_RUN=no
  fi
  [ "$DO_RUN" = "yes" ] && nvm "$@"
  alias nvm='_nvm'
}
alias nvm='_nvm'