On Wed, 25 Jul 2018, David Winsemius wrote:
# create a list from these files
list.filenames<-list.files(pattern=".CSV$") # This gets a list of all CSV files
It would get all the files with all caps "CSV" anywhere within the file
name, but it would not get any files with an extension ".csv", nor would
it exclude a file named "somethingCSV" . The pattern argument is
interpreted as a regex pattern and the meaning of a period is different.
Better for this purpose would be:
list.files(pattern="\\.(csv|CSV)$")
I suppose this criticism might be platform-specific if the filesystem were
caps-agnostic, but mine is not.
David,
I saw that and noted that since linux separates meaning between upper- and
lower-case letters it would need to be modified is there were any *.CSV
files in the directory. Same type of problem occurs when file names have
spaces in them.
Regards,
Rich
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