On Mon, 2013-09-23 at 14:19 -0300, Beco wrote: > On 23 September 2013 09:43, Ralf Mardorf <ralf.mard...@alice-dsl.net> wrote: > > Hi, > > > > is there a way to set and clear bits of a byte in a bash script, by > > using "or" and "and" or has this to be done by an annoying workaround? > > > > I don't find an answer, when I search the Internet. > > > > Regards, > > Ralf > > > Hi Ralf, > > Try this [1] method: > > $let RE="5&1" > $echo $RE > 1 > $let RE="5>>1" > $echo $RE > 2 > > My best! > Beco. > > > > [1] from google keywords "bash script bitwise operations", second result. > > http://my.safaribooksonline.com/book/operating-systems-and-server-administration/linux/0672326426/expressions/ch06lev1sec9
Thank you Beco :) $ let "RESULT=5 | 3" $ echo $RESULT 7 $ let "RESULT=5 & 3" $ echo $RESULT 1 Excellent, exactly what I need. Regards, Ralf -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1379957685.1022.250.camel@archlinux
