Expand symlinks into their source; delete the symlink.

deref.sh

deref() {
  # Dereferences a symlink.
  # Usage: deref [symlink]
  if ! [ -L $1 ]; then
    echo_error "File is not a symlink: $1. Exiting..."
  else
    local src=$(readlink -f $1)
    echo "Moving $src -> $1" && \
      mv $1 $1.bak && \
      mv $src $1 && \
      rm $1.bak
  fi
}