CODEWITHSUNDEEP
r
user1471980
user1471980

Reputation: 10626

how do you check if file exists in a share

I am trying to see if file exists as follows:

linux.csv is like this

    servera
    serverb
    serverc
    serverd

server<-read.csv("C:/linux.csv")
setwd("\\\\share\directory\")

for (i in server) {
  
  print(i)
}
  i<-paste0(i,".sh")
  if(!file.exists(i)){
    print(i)
    print(paste0(i, " does not exists"))
  }
}

this does not seem to be working, any ideas?

Upvotes: 0

Views: 115

Answers (1)

Gregor Thomas
Gregor Thomas

Reputation: 145775

read.csv returns a data frame. When you do for (i in dataframe) it will iterate over columns of the data frame, not rows. But it looks like you have a single column with 4 rows, so that is the reason it isn't working.

I would suggest using readLines instead of read.csv, which will return a character vector. The rest of your code should work better then (though you seem to have an extra }... be careful your for loop doesn't end with a } immediately after the first print() statement).

Also, all backslashes in R strings need to be doubled, because they are escape characters. So setwd("\\\\share\directory\") needs to be setwd("\\\\share\\directory\\"). (Or use forward slashes instead.)

Upvotes: 2

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