In many situations, switching in between folders under the command line operation is a combersom task. One needs to key-in many letters to go through the right path, and this is why I made the "BASH-Portal" for the Linux / Unix-like system.

With BASH-Portal, you can easily mark your current place of a folder, and come back again by using the keyword that you marked in an early time.

Here is an example of using the "BASH-Portal":

 ~$ cd First_layer/Second_layer    # Go to some folder place
 ~/First_layer/Second_layer$ here  # Mark an empty keyword for this place

Now you've marked a folder place with an empty keyword for the future usage. You can leave the folder and go to some where, such as:

~/First_layer/Second_layer$ cd    # Return to your home folder

And once if you want go back to the place that you marked, just do the following:

~$ there            # Directly go to the place that you just marked
~/First_ayer/Second_layer$   # Now, you are in the folder you want!

• Mark current folder with empty keyword

here <Enter>

• Mark current folder with keyword "ddd"

here ddd <Enter>

• Go to the place where with the empty keyword

there <Enter>

• Go to the place where with the "ddd" keyword

there-ddd <Enter>

• Check the portal list that you've made in the past (here -l):

$ here -l <Enter> # -l is the 'L' letter in lower case

alias there='cd /Users/username'; pwd;
alias there-ddd='cd /Users/username/path-to-ddd'; pwd;

$

1. Just download this repository and place the folder in someplace.
2. Add the following script in your ~/.bashrc (Linux) or ~/.profile (OSX)

export PORTAL_PATH=~/path-to-the-bash-portal # Place your folder path for the "BASH-Portal" folder
source ${PORTAL_PATH}/here.source