Basic Linux commands:-

mkdircreate a directory ubuntu@ip-172-31-23-252:~$ mkdir ubuntu1 ubuntu@ip-172-31-23-252:~$ ls ubuntu1 touchcreate a file ubuntu@ip-172-31-23-252:~$ touch file{1..5} ubuntu@ip-172-31-23-252:~$ ls file1 file2 file3 file4 file5 lslists the cont...