terminalRunning {rstudioapi}

Is Terminal Running

Description

Does a terminal have a process associated with it? If the R session is restarted after a terminal has been created, the terminal will not restart its shell until it is displayed either via the user interface, or via terminalActivate().

Usage

terminalRunning(id)

Arguments

id

The terminal id. The id is obtained from terminalList(), terminalVisible(), terminalCreate(), or terminalExecute().

Value

a boolean

Note

The terminalRunning function was added in version 1.1.350 of RStudio.

Examples

## Not run: 
# termId has a handle to a previously created terminal
# make sure it is still running before we send it a command
if (!rstudioapi::terminalRunning(termId)) {
   rstudioapi::terminalActivate(termId))

   # wait for it to start
   while (!rstudioapi::terminalRunning(termId)) {
      Sys.sleep(0.1)
   }

   terminalSend(termId, "echo Hello\n")
}

## End(Not run)