/usr/share/calc/help/system is in apcalc-common 2.12.5.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | NAME
system - issue a shell command
SYNOPSIS
system(cmd)
TYPES
cmd str
return int
DESCRIPTION
This function excutes the shell command found in the srtring, cmd.
The return value is system dependent. On POSIX P1003.1 compliant
systems the return value is defined by the waitpid system call.
Typically a shell command that returns with a 0 exit status will
cause this function to return a 0 value. On some systems, a shell
command that returns with an exit status of e will cause this
function to return e*256. Core dumps, termination due to signals
and other waitpid values will change the return value.
On POSIX P1003.1 compliant systems, if cmd is empty then this function
will determine if the shell is executable. If the shell is executable,
0 is returned otherwise non-zero is returned.
EXAMPLE
; system("")
0
; system("true")
0
; system("exit 2")
512
; system("date")
Sun Jul 9 03:21:48 PDT 1995
0
LIMITS
none
LINK LIBRARY
none
SEE ALSO
cmdbuf, argv
## Copyright (C) 1999-2006 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL. You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## @(#) $Revision: 30.1 $
## @(#) $Id: system,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/bin/calc/help/RCS/system,v $
##
## Under source code control: 1995/07/09 03:48:57
## File existed as early as: 1995
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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