Assessment Question: GNU Coreutils

I will keep the topic I choose for my concept map. GNU Coreutils.

To distinguish novices from competent:

The GNU Coreutils is a colection of tools for a Unix-like shell to manager
files that in a few cases is incompatible with the POSIX standard.

Select the option below that give a valid shell command using ONLY tools of
the GNU Coreutils for the desired action:

1. output the first 10 lines of the file `sample.txt`
2. list the content of $HOME with the permissions
3. remove the non-empty directory `sample`<table border=1>

</table> To distinguish competent from experts:

The rm command of GNU Coreutils with the flag `-rf` must be used with
caution.

Select the option below that give a valid shell command using rm he desired
action:

1. remove the file name `-rf .`
2. remove the directory name `sample ~`<table border=1>

</table>