ps.grep.remote: Checks for processes running on a local or remote machine.

In collectivemedia/ssh.utils: Local and remote system commands with output and error capture.

Description

One of the use cases for this function is to ensure that an R process is already running and not start another one accidentally.

Usage

ps.grep.remote(grep.string, remote, stop.if.any = FALSE,
  stop.if.none = FALSE, count.self = FALSE, ps.options = "aux")

Arguments

grep.string	String(s) to check for in ps. If a vector, runs a chain of piped grep commands for each string.
remote	Remote machine specification for ssh, in format such as user@server that does not require interactive password entry. For local execution, pass an empty string "" (default).
stop.if.any	Stop if any of grep.string is running
stop.if.none	Stop if none of grep.string is running
count.self	When FALSE, excludes the calling process name from the count, if it gets matched.
ps.options	Gives the ability to run different options to ps.

Note

This may not work on Windows.

See Also

run.remote

Examples

## Not run: 
# Check if Eclipse is running.
ps.grep.remote("Eclipse", remote = "")
# [1] TRUE

## End(Not run)

collectivemedia/ssh.utils documentation built on May 13, 2019, 9:54 p.m.