R help - Apr 2022 - extracting data files names with odd numbers from folder

I have a selection of data files saved as:
File1.csv
File2.csv
File3.csv
File4.csv
.
.
.
File100.csv

I need to extract the odd numbered files.
I have tried using the list.files function but I do not understand how to set
pattern ="???" in order to extract the odd file names

list.files(path, pattern= "????????",... )

	[[alternative HTML version deleted]]

You need to learn regular expression patterns... there are lots of languages
that use them, and tutorial websites that teach them to you. They are not the
same as filename globbing patterns, and list.files uses regex because they are
much more flexible.

Here is an example:

list.files( pattern = "[135]\\.csv$" )

On April 3, 2022 10:28:04 PM PDT, CHANCE CARTER <chance257 at comcast.net>
wrote:
>I have a selection of data files saved as:
>File1.csv
>File2.csv
>File3.csv
>File4.csv
>.
>.
>.
>File100.csv
>
>I need to extract the odd numbered files.
>I have tried using the list.files function but I do not understand how to
set pattern ="???" in order to extract the odd file names
>
>list.files(path, pattern= "????????",... )
>
>	[[alternative HTML version deleted]]
>
>______________________________________________
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-- 
Sent from my phone. Please excuse my brevity.