bashrc.sh

alias ..='cd ..'
alias ...='cd ../../../'

################################################
# [bash - aliasing cd to pushd - is it a good idea? - Unix & Linux Stack Exchange](https://unix.stackexchange.com/a/4291/187865)
# You can then navigate around on the command-line a bit like a browser.
# - cd changes the directory.
# - back goes to the previous directory that you cded from.
# - flip will move between the current and previous directories without popping them from the directory stack.

pushd()
{
  # recreate cd standard behaviour with no arguments: go to ~
  if [ $# -eq 0 ]; then
    DIR="${HOME}"
  else
    DIR="${1%/}" # bash only!!
  fi
  builtin pushd "${DIR}" > /dev/null
  # Remove paths duplication in DIRSTACK
  dedup

  #echo -n "DIRSTACK: "
  #dirs -l
}

pushd_builtin()
{
  builtin pushd > /dev/null
  echo -n "DIRSTACK: "
  dirs
}

popd()
{
  builtin popd > /dev/null
  echo -n "DIRSTACK: "
  dirs
}

alias cd='pushd'
complete -o nospace -o plusdirs -F _fzf_dir_completion cd
alias back='popd'
alias flip='pushd_builtin'
alias pu='pushd'
alias po='popd'
alias di='dirs -v -p -l'
alias dif='dirs_fzf' # my custom dirs+fzf script

# deduplicate DISRSTACK , see removing duplicates from pushd/popd paths https://unix.stackexchange.com/a/288532
dedup(){
    declare -a new=() copy=("${DIRSTACK[@]:1}")
    declare -A seen
    local v i
    seen[$PWD]=1
    for v in "${copy[@]}"
    do if [ -z "${seen[$v]}" ]
       then new+=("$v")
            seen[$v]=1
       fi
    done
    dirs -c
    for ((i=${#new[@]}-1; i>=0; i--))
    do      builtin pushd -n "${new[i]}" >/dev/null
    done
}