When I exit the interactive R shell, it displays an annoying prompt every time:
> > Save workspace image? [y/n/c]: n
I'm always answering "no" to it, because if I wished to save my work, I'd do that before trying to exit.
How to get rid of the prompt?
Note: see ?save.image
You can pass the --no-save command line argument when you start R, or you can override the q function:
utils::assignInNamespace(
"q",
function(save = "no", status = 0, runLast = TRUE)
{
.Internal(quit(save, status, runLast))
},
"base"
)
Put the above code in your .Rprofile so it will be run on startup for every session.
Haven't found the easiest Linux solution yet :)
On ubuntu add the following line to your ~/.bashrc:
alias R='R --no-save'
Every time you start the R console with R, it will be passed the --no-save option.
You can escape the "Save workspace image?" prompt with a Ctrl+D.
Thus, if you do Ctrl+D twice in interactive R, then you exit R without saving your workspace.
(Tested on Linux and OS X)
If you are using Rgui, right-click on the icon you use to start R and click on "Properties", and add --no-save to the command that starts R.
(from http://tolstoy.newcastle.edu.au/R/help/05/03/1115.html)
If you are using a different editor than Rgui, you have to pass --no-save to the R command line when starting R
Overwrite default option for save argument of quit function
formals(quit)$save <- formals(q)$save <- "no"
put this line in .Rprofile
Edit: added q, so there is no prompt no matter which variant is used
Get the best of both strategies given by users 1 and 2:
Default to not save by adding the following line to your ~/.bashrc:
alias R='R --no-save'
But give yourself an easy way to save on exit by adding this to ~/.Rprofile:
qs <- function() { q(save="yes") }
So now q() will quit without saving or prompting but qs() will save and quit (also without prompting)
You could easily add a qq() function to the .Rprofile file
qq <- function(save="no") { q(save=save)}
I thought that the save option was available with options, but apparently Joshua's answer is best.
If you're using R Studio IDE, you can do this by re-setting the global option.
Go to Tools --> Global Options --> R General (Basic)
Click on 'Apply' and then 'Ok'
I've written a detailed post on this topic here
In this post, I've addressed 'should we or should we not' save workspace image? I've written detailed answer to the following questions in the comments (make sure you read them all):
In some other posts, I've discussed that might be useful for R users are:
'What is reproducible work?' https://www.linkedin.com/feed/update/urn:li:activity:6789770117715640320
Why should you not use rm(list=ls())? R Best Practices https://www.linkedin.com/feed/update/urn:li:activity:6785805481131683840
Working directory https://www.linkedin.com/posts/drnishaarora_2-set-working-directory-r-studio-activity-6785423883408297984-NAoH
If, like me, typing out a whole pair of brackets seems like too much effort to exit the repl you can try this:
exit <- structure(list(), class = "exit_command")
print.exit_command <- function(...) {
q("no") # exit without saving
}
This creates a new class, which causes R to exit when attempting to print said class. The upshot being that if you run exit in the R repl, the whole thing will exit (because it tries to print it).
NB: You can add it to ~/.Rprofile to load at the start of every session.
If you feel adventurous enough, you could also edit the startup section at the end of /usr/bin/R, i.e. add --no-save to the exec calls. However, if you need to save your workspace, remember to save.image().
