/usr/share/doc/apcalc-common/examples/plus is in apcalc-common 2.12.4.4-3.
This file is owned by root:root, with mode 0o755.
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 | #!/usr/bin/calc -q -f
/*
* plus - add two or more arguments together
*
* Copyright (C) 1999-2007 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: plus.calc,v 30.1 2007/03/16 11:12:11 chongo Exp $
* @(#) $Source: /usr/local/src/cmd/calc/cscript/RCS/plus.calc,v $
*
* Under source code control: 1999/11/29 10:22:37
* File existed as early as: 1999
*
* chongo <was here> /\oo/\ http://www.isthe.com/chongo/
* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
*
* usage:
* plus val ...
*/
/*
* parse args
*/
if (argv() < 2) {
/* we include the name of this script in the error message */
fprintf(files(2), "usage: %s value ...\n", config("program"));
abort "not enough args";
}
/*
* print the sum of the args
*
* Since args are strings, we must eval them before using them numerically.
*/
sum = 0;
for (i=1; i < argv(); ++i) {
sum += eval(argv(i));
}
print sum;
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