i$)$Suppose you need to use a Linux command to accomplish a task that is new to you. Outline what steps you would take to find an appropriate command and its parameters

ii$)$Add a new user john to your system, giving their account a userid of $1234$

iii$)$Open a new terminal. As the new user, hedwig, create a file test.txt in their home directory.

iv$)$Use a command to demonstrate that more than one user is currently using the operating system.

v$)$Transfer ownership of test.txt to the default user $($for example, pi$),$ and show the file permissions.

vi$)$Use appropriate commands to count the number of times you have used the sudo command, saving the result in a new file count.txt

When i try the first section

i use the command

sudo useradd $-$u $1234$ john

sudo passwd john

i get the error

su: warning: cannot change directory to $/$home$/$john: No such file or directory

touch test.txt

it says touch:cannot touch 'test.txt$\text{'}$: permission denied