sfsmisc: u.sys – R documentation

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u.sys

'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

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

Utilities from 'Seminar fuer Statistik' ETH Zurich

v1.1-11

GPL (>= 2)

Authors

Martin Maechler [aut, cre] (<https://orcid.org/0000-0002-8685-9910>), Werner Stahel [ctb] (Functions: compresid2way(), f.robftest(), last(), p.scales(), p.dnorm()), Andreas Ruckstuhl [ctb] (Functions: p.arrows(), p.profileTraces(), p.res.2x()), Christian Keller [ctb] (Functions: histBxp(), p.tachoPlot()), Kjetil Halvorsen [ctb] (Functions: KSd(), ecdf.ksCI()), Alain Hauser [ctb] (Functions: cairoSwd(), is.whole(), toLatex.numeric()*), Christoph Buser [ctb] (to function Duplicated()), Lorenz Gygax [ctb] (to function p.res.2fact()), Bill Venables [ctb] (Functions: empty.dimnames(), primes()), Tony Plate [ctb] (to inv.seq()), Isabelle Fl<fc>ckiger [ctb], Marcel Wolbers [ctb], Markus Keller [ctb], Sandrine Dudoit [ctb], Jane Fridlyand [ctb], Greg Snow [ctb] (to loessDemo()), Henrik Aa. Nielsen [ctb] (to loessDemo()), Vincent Carey [ctb], Ben Bolker [ctb], Philippe Grosjean [ctb], Fr<e9>d<e9>ric Ibanez [ctb], Caterina Savi [ctb], Charles Geyer [ctb], Jens Oehlschl<e4>gel [ctb]

Initial release

2021-04-03