Is there a way to determine if an R program was run from the command line?

Question

I'd like the flow of control to vary depending on where an R program is called from. Something like

if (called_from == 'GUI') {
print('Hello GUI')} else {
print('Hello command line')
}

Is this possible? If so, please provide as many details as possible.

You can use `interactive()`. If TRUE the code is probably being run in a GUI, if FALSE, it's probably being run at the command line. See the `?interactive` help page for more details. — MrFlick, Jun 26 '19 at 14:57

score 3 · Accepted Answer · answered Jun 26 '19 at 14:58

3

if (interactive()) {
  print('Hello GUI')
} else {
  print('Hello command line')
}

answered Jun 26 '19 at 14:58

the-mad-statter

1 Answers1