I have an environment variable `$R_HISTFILE` pointing to
`/home/my.username/.RHistory` and the following code in my `.Rprofile` in
my home directory:


    .Last <- function() {
            if (!any(commandArgs()=='--no-readline') && interactive()){
                    require(utils)
                    try(savehistory(Sys.getenv("R_HISTFILE")))
            }
    }

Still whenever I open R, and I type `history()` I can't see the commands
that I typed in earlier sessions. Moreover, the files `.RHistory` is pretty
much empty with only three lines, (not at all reflecting commands I typed
in the past).

How can I automatically save my history of commands and easily re-use them
across R sessions?

James

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