Command to open a folder from Linux terminal
Open current directory /parent directory or child directory for Linux
xdg-open .
. stand for current directory
xdg-open ..
.. stand for parent directory
open child direcectory
Type xdg-open and type child folder name then hit Enter
Open specific directory (folder)
xdg-open file or full directory
Bash Tip
Using bash allias in the end of ~/.bashrc or ~/.bash_alias
alias o="xgd-open ."'
alias x="xdg-open"
If you use Ubuntu use can use other command.