u.sys: 'Portable' System function (R / S-plus)

In sfsmisc: Utilities from 'Seminar fuer Statistik' ETH Zurich

'Portable' System function (R / S-plus)

Description

u.sys() is a convenient wrapper (of system()) to call to the underlying operating system. The main purpose has been to provide a function with identical UI both in S-PLUS and R. MM thinks you shouldn't use this anymore, usually.

Sys.ps.cmd() returns the ‘⁠ps⁠’ (‘process status’) OS command name (as character string), and is typically usable on unix alikes only.

Usage

u.sys(..., intern = TRUE)

Sys.ps.cmd()

Arguments

...	any number of strings – which will be paste()d together and passed to system.
intern	logical – note that the default is reversed from the one in system().

Author(s)

Martin Maechler

See Also

system, really!; on non-Windows, Sys.ps() which makes use of Sys.ps.cmd().

Examples

u.sys # shows how simply the function is defined :
## Not run: 
  function (..., intern = TRUE)
  system(paste(..., sep = ""), intern = intern)

## End(Not run)

# All *running* processes of user [sometimes only R]:
try ( u.sys(Sys.ps.cmd(), "ur") )

sfsmisc documentation built on Sept. 11, 2024, 6:53 p.m.