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This is the currently suggested challenge:

Print columns 1-3 in reverse order (column 3 then 2 then 1)

Hint
cut doesn't care about which order you specify individual columns it just doesn't accept a range where the start number is bigger than the last.

Answer
cut -d ',' -f 3,2,1 parks.csv

However the cut command cannot change the order of the columns so will continue to print the columns in the order 1, 2, 3

Maybe worth investigating paste

Either automate or add instructions for dealing with the less freezing issue. Prolly assign this to @Edward-Knight ?

Some learners are confused by the angle bracket notation (e.g. mkdir <name_here>). This notation is explained in the later tutorials, but used in the first tutorial.
Perhaps the explanation should be moved earlier in the tutorial series?

I'm not sure if this was just me, but when going through this section I was wondering if there should be more details for the answers. For example:

What do you think this command will produce?
cut -d ',' -f 1 parks.csv
Answer
The first column (Park Code)

Or maybe having

Park Code
ACAD
ARCH
BADL
... (other codes are listed here) ...
YELL
YOSE
ZION

would be more clear. Thoughts?

It seems to have some non-standard characters in it?

On step 2 9f tutorial 4,the output of man head is inconsistent with instructions.

1 != l

I believe this may be an issue that only occurs on Windows machines, but I don't have one with me to test at the moment.

Not sure if we can use a different font, otherwise we might want to add a note as several people have required help with this.

Step 4 asks us to create the directory /home/scrapbook/tutorial/step3/test_folder,
but step 5 then asks us to work on test_folder, but says it's located at /home/scrapbook/tutorial/test_folder

See #3, but need to make the change to other tutorials as well

less seems to have trouble picking up on the size of the virtual terminal sometimes. This only occurs on certain window sizes / resolutions.

The solution is to run reset before launching a pager (either directly running less or via man).
We can educate mentors on this, but it may also be worth seeing if Katacoda supports a .bashrc that we can modify to run reset at the beginning.

We should check all the asset files end with a newline.

In Tutorial 2 Step 1, when trying to read ada_lovelace_bio.txt with less, I get the following message:

$ less ada_lovelace_bio.txt
"ada_lovelace_bio.txt" may be a binary file.  See it anyway?

Not sure what would be causing that, maybe some rogue escape character in the text file?

In any case this could be confusing to learners.

If Katacoda allow you to specify environment variables, you could use LESS=-f which will force less to read it? (https://superuser.com/a/772683/381552)

The instruction says:

ls --help

This should print out:

Usage: ls [OPTION]... [FILE]...
List information about the FILEs (the current directory by default).
Sort entries alphabetically if none of -cftuvSUX nor --sort is specified.
...

But the output of ls --help is quite long so the user only sees the bottom: