proc_bash: Run a Bash process

In yihui/runr: Run External Programs from R

Description

This function returns a list of functions to start/run/stop a Bash process. The communication between R and Bash is through a socket.

Usage

proc_bash(port = 2000)

Arguments

port	A TCP port number

Value

A list of functions.

Author(s)

Originally implemented via FIFO by Yihui Xie and Yixuan Qiu; converted to use sockets by Adam Lyon.

Examples

## Not run: 
b = proc_bash()
b$start()
b$exec("x=1")
b$exec("echo $x")
b$exec("echo $x--$x--$x")
b$exec("x=abcABC123ABCabc", "echo `expr length $x`  # length of x")
b$exec("foo bar")  # an error
b$running()
b$stop()

## End(Not run)

yihui/runr documentation built on May 4, 2019, 4:26 p.m.