Da' fuck:
# echo "FF"| awk -F':' '{printf ("%02X\n", (("0x"$1)+4)%0x100);}'
03
Undeva e o eroare aritmetica !!!
Mircea "si ala lungu nu merge :(((" C.
2016-03-31 11:35 GMT+02:00 Catalin Muresan <[email protected]>:
> Merge si fara sprinttf.
>
> [cata@lemon ~]$ echo "FF"| awk -F':' '{printf ("%02X\n",
> (("0x"$1)+4)%0x100
> );}'
> 04
>
>
> 2016-03-31 10:31 GMT+01:00 Petru Rațiu <[email protected]>:
>
> > 2016-03-31 12:24 GMT+03:00 Petru Rațiu <[email protected]>:
> >
> > > Mi-e lene sa fac proof of concept acu, da' as scoate doopunctele, as
> face
> > > increment si le-as pune la loc.
> > >
> > > Aaaa, zici ca stii tu sigur ca nu face overflow? vezi ca gawk stie de
> > > strtonum:
> > >
> > > echo AF | gawk ' { printf "%X\n", strtonum("0x"$1)+2 }'
> > > B1
> > >
> >
> > M-am scos si cu old-school awk: echo AF | busybox awk ' { printf "%X\n",
> > sprintf("0x"$1)+2 }'
> >
> > --
> > P.
> >
> > 2016-03-31 12:06 GMT+03:00 Mircea Ciocan <[email protected]>:
> >
> > > Ajutati si voi un om batran si mai apropriat de hw decat de sed si awk:
> > >
> > > am un shell deosebit de castrat pe un device, fara aritmetica si fara
> cut
> > > si o adresa de Ethernet MAC intr-o variabila de tipul:
> > >
> > > MAC0="00:70:80:90:A0:5A"
> > >
> > > vreau sa incrementez ultimul numar ( se presupune ca nu va face
> overflow)
> > > cu 2 si in exemplul de mai sus sa iasa:
> > >
> > > MAC2="00:70:80:90:A0:5C"
> > >
> > > cum Doamne iarta-ma fac asta cu awk si/sau sed
> > >
> > >
> > > Mircea "let's castrate the shells" C.
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> >
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