CMD Challenge is an interesting website that has a live Linux emulated terminal inside the browser, if you’re looking for a fun way to learn some of the command line tricks there are in the terminal then there are a multitude of different challenges that are from a basic level to a more intermediate user. Give it a try
The challenges include the following activities:
corrupted_text
count_files
count_string_in_line
delete_files
extract_ip_addresses/var/log/httpd
files_starting_with_a_number
find_string_in_a_file
find_tabs_in_a_file Avoid README 3 days ago
just_the_files
last_lines
print_common_lines
print_file_contents
print_nth_line
remove_duplicate_lines
remove_extensions_from_files
remove_files_with_a_dash Remove file with a dash (#70) 2 days ago
remove_files_with_extension
remove_files_without_extension
replace_spaces_in_filenames
replace_text_in_files
search_for_files_by_extension
search_for_files_containing_string
search_for_string_in_files_recursive/var/log/httpd
simple_sort
split_on_a_char
sum_all_numbers
You can try the challenge at https://cmdchallenge.com/
If you get stuck for any reason you can look up the solutions here: