Using read.table in a for loop in R : I am trying to read in multiple files into R, which are in multiple directories (which cannot be changed).

My code is as follows:

    gs_scores_dir="/home/directory1/file1.txt"
    ps_scores_dir="/home/directory2/file2.txt"
    ds_scores_dir="/home/directory3/file3.txt"
    
    for (data in c("gs","ps","ds")){
    	assign(paste(data,"scores", sep="_"),
    		read.table(paste(data,"scores_dir",sep="_"),header=T))
    }

ie. I want three files read into R, with the object names `gs_scores`, `ps_scores` and `ds_scores`.

However I get the following error message:

    Error in file(file, "rt") : cannot open the connection
    In addition: Warning message:
    In file(file, "rt") :
      cannot open file 'gs_scores_dir': No such file or directory

When I change the code to the following for example, it works:

    for (data in c("gs","ps","ds")){
    	assign(paste(data,"scores", sep="_"),
    		read.table(gs_scores_dir,header=T))
    }

Does anyone know what the error of my code is or a better way of using read.table within a for loop?  Thank you.