Date: Fri, 21 Sep 2012 10:09:02 -0700 From: David Wolfskill <david@catwhisker.org> To: stable@freebsd.org Subject: /bin/sh arithmetic doesn't seem to like leading 0 now Message-ID: <20120921170902.GC28959@albert.catwhisker.org>
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--HG+GLK89HZ1zG0kk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I have a construct in a shell script that I had been using under stable/8 (most recently, @r240259), but which throws an error under stable/9 (at least as early as @r238602): $ echo $(( ( $( date +%m ) - 1 ) / 3 + 1 )) 3 $ uname -r 8.3-PRERELEASE $ echo $(( ( $( date +%m ) - 1 ) / 3 + 1 )) arithmetic expression: expecting ')': " ( 09 - 1 ) / 3 + 1 " $ uname -r 9.1-PRERELEASE Trying bits & pieces of the above, I narrowed the issue down to: $ echo $(( 09 + 0 )) arithmetic expression: expecting EOF: " 09 + 0 " while $ echo $(( 9 + 0 )) 9 $=20 is not a problem. Is this intentional? (I can work around it -- e.g., by using sed to strip leading 0 from the month number (since strftime() doesn't appear to have a format that provides the value in a form that lacks the leading zero for values < 10). But I'd rather not do that if I don't need to.) Thanks! Peace, david --=20 David H. Wolfskill david@catwhisker.org Depriving a girl or boy of an opportunity for education is evil. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --HG+GLK89HZ1zG0kk Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlBcny4ACgkQmprOCmdXAD0Y5QCghiCMxA8YqssEHo0tNQs9AUwq RIEAnixWPy52qwvII/RJokyOexuNH7IG =hjRg -----END PGP SIGNATURE----- --HG+GLK89HZ1zG0kk--
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