The input line of Linux, more precisely the Bash is full of power. Especially the tab key can be very helpful.
If you want to change to a subdirectory, enter only the first two or three letters of the directory at the command prompt, for example
cd off
and then press the [Tab] key. If there is a directory that starts with these letters, Linux adds the input, for example:
CD exchange
and all you have to do is press [Return] .
If you have multiple directories that begin with the same letters, for example, win_c and win_d , then Linux adds exactly as many characters as the directories have in common, so win_ . Then just enter the missing character (s).