R make lots of text files

Question

Sample

x <- 1:10
fileConn<-file("file[x.txt")
writeLines("hello number",
           print(x), fileConn)
close(fileConn)

Here what I have is x which goes from 1 thru 10. I wish to make 10 files called "file1.txt" thru "file10.txt" that says

"hello number"
1

thru

"hello number"
10

for example.

edit- it should actually be

hello number 1

instead of

hello number
1

Tim Biegeleisen · Accepted Answer · 2019-03-28T11:08:02.270

1

We could try using an apply function here:

sapply(x, function(y) {
    name <- paste0("file", y, ".txt")
    fileConn <- file(name)
    writeLines(c("hello number", y), fileConn)
    close(fileConn)
})

If you don't want those default line breaks, then one option is to just call writeLines with a single character:

writeLines(paste0("hello number ", y), fileConn)

edited Mar 28 '19 at 11:08

answered Mar 28 '19 at 10:00

Tim Biegeleisen

502,043
27
286
360

This is bringing error: Error in writeLines("hello number\n", print(y), fileConn) : 'con' is not a connection – bvowe Mar 28 '19 at 10:02
@bvowe I think your call to `writeLines` was incorrect, and I copied it. Try my updated answer, which passes a vector as the first argument. – Tim Biegeleisen Mar 28 '19 at 10:04
thanks that is great actually please see my new edit about the line break removal thanks – bvowe Mar 28 '19 at 10:52
@bvowe I edited my answer to cover this new requirement. Note that it is generally rude to change your question after others have already answered. – Tim Biegeleisen Mar 28 '19 at 11:09
I am real sorry. For next step should I make new question? – bvowe Mar 28 '19 at 11:09
Yes, you should, unless it is a very minor change from this question. – Tim Biegeleisen Mar 28 '19 at 11:10

R make lots of text files

1 Answers1