system(3) && open file descriptors

Matthias Apitz guru at
Tue Apr 29 19:51:05 UTC 2014


It seems that the proc started by the C library call system(3), as
/bin/sh -c string
owns the same set of open file descriptors as its calling proc. Is this
somewhere documented as a feature? 'man system" does not say anything
about, while 'man fork' does.



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Matthias Apitz, <guru at>, f: +49-170-4527211
UNIX since V7 on PDP-11, UNIX on mainframe since ESER 1055 (IBM /370)
UNIX on x86 since SVR4.2 UnixWare 2.1.2, FreeBSD since 2.2.5

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