linuxzoo

Thats normal and can happen at any time.
However there is always a button at the start of each tutorial which resets the files and users in a way suitable for the tutorial you are doing.
I dont guarentee file storage, as this is just a free service.

Gordon.

Are you in /home/demo?
Are you user demo?
You should always put the *.conf in quotes...
Hope that helps.

http://linuxzoo.net/page/manipulate_pipe.html

Build the data with the ls command then pipe it to the grep.

Use the ls -l command to see the dates, and then pipe it to grep.

Thats an unusual problem which I have not had before. The line in linuxzoo with the error is to do with encoding or checking passwords. These are composed of your password, and a seed of your other details, such as email address, username, lastname, etc. Perhaps one of those things (e.g. your name o...

Well strictly speaking it says "the same characters", and characters "a" and "A" are actually different characters, so case sensitivity seems something you need.
But in reality I am always aiming for the simplest answer.
I will add something into the words of the question.
Kind Regards
Gordon.

I wonder...
I didn't use -i myself...

Yes. Its not been my best day...
I will fix this next week...
G.

Hi. What I am saying is [^aeiou] or anything similar is incorrect, as it assumes the characters in between are not vowels themselves, and this is not something asked for in the question. Rather than [^aeiou], how about .* ? You are also confused by "*". You have one right at the start, but "*" opera...

Again here the tutorials are designed for the course I am teaching, which does not cover -S.
The intention here is to use sort.
The problem lies in when the sizes are identical, in which case ls and sort may have different opinions as to which order is best.
G.

The tutorials are designed only for a restricted set of regexp parameters.
Althought \w seems natural, my students have not been taught it, and it stops some matches.
I envisaged "." rather than "\w".
(..) and then just \1 seems nicer.

sacrilegious
a e iou

Seems fine to me.
I didnt say that it could only have 5 vowels in total, only that 5 appeared in order...
Gordon.

[aeiou] would find vowels. Separate with .*

I expect it means 2 characters...

grep -E "^something" | grep -E '^.{11}$'

otherwise you have to subtract the length of "something" from 11, and do "^something.{remainder}$" where remainder is the result of the calculation...

Looks fairly good..
Is thecopy a directory, and if so was it empty when you ran this find command??
But most importantly you sure the units is b? You sure it is not c for character?

One question per forum topic pls.
Gordon.