change directories
$ cd directory_namemake a directory
$ mkdir directory_namego up one directory
$ cd ..make a file
$ touch file_namedelete a file
$ rm filenamedelete a directory
$ rm -r directory_namerename or move a file or folder
$ mv old_file_name new_file_namecopy a file or folder
$ cp old_file_name new_file_nameopen the current directory in the Finder
$ open .open the current directory in the vscode
$ code .