Date: Mon, 17 Dec 2012 04:22:21 -0800 (PST) From: Jack Mc Lauren <jack.mclauren@yahoo.com> To: Ben Cottrell <tamino@wolfhut.org> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: using AWK Message-ID: <1355746941.52411.YahooMailNeo@web160103.mail.bf1.yahoo.com> In-Reply-To: <8EA88B4E-9C21-4CF7-9AB0-87663AB876F8@wolfhut.org> References: <1355744359.61103.YahooMailNeo@web160104.mail.bf1.yahoo.com> <8EA88B4E-9C21-4CF7-9AB0-87663AB876F8@wolfhut.org>
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>>Hi Jack,=0A=0A=0A=0AHI=0A=0A> How can I read a file which contains a numb= er and assign that number to=0A> a variable via awk programming? By the way= , I want to use this awk program=0A> in a shell script.=0A=0A>>I'm actually= not sure what you're asking, exactly -- you want the number=0A>>to go into= an awk variable? Or a shell variable?=0A=0AYes, I want the number to go in= to an awk variable.=0A=0A>>Assuming you want it to go into an awk variable,= I would try something=0A>>like this:=0A=0A>> =A0 =A0getline my_number < fi= lename;=0A>> =A0 =A0close filename;=0A=0A>>That assumes the filename is sto= red in the variable named "filename".=0A>>It puts the number in the awk var= iable named "my_number".=0A=0A>>To put that in context, let's say you're ge= tting the filename from $0,=0A>>and you want to multiply the number by 2 an= d print it. You might do:=0A=0A>> =A0 =A0filename =3D $0;=0A>> =A0 =A0getli= ne my_number < filename;=0A>> =A0 =A0close filename;=0A>> =A0 =A0print my_n= umber * 2;=0A=0A>>Or if I completely misinterpreted your question, let me k= now :-)=0A=0A>> =A0 =A0~Ben=0A=0A=0AThis is what i wrote:=0A=0A=0A#! /bin/s= h=0A=0Afilename=3D$0=0Aawk 'getline no < filename; print no'=0A=0ABut when = I run this script=0A=0Ash /awk_no.sh /var/no.txt=0A=0AI have this error := =0A=0Aawk: syntax error at source line 1=0A=A0context is=0A=A0 =A0 =A0 =A0 = getline no < filename; >>> =A0print <<< =A0no=0Aawk: bailing out at source = line 1=0A=0AThank you :) From owner-freebsd-questions@FreeBSD.ORG Mon Dec 17 12:38:08 2012 Return-Path: <owner-freebsd-questions@FreeBSD.ORG> Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BB24D2A5 for <freebsd-questions@freebsd.org>; Mon, 17 Dec 2012 12:38:08 +0000 (UTC) (envelope-from radek.krejca@starnet.cz) Received: from EXCHANGE.mail.starnet.cz (exchange.mail.starnet.cz [92.62.224.72]) by mx1.freebsd.org (Postfix) with ESMTP id 1A6218FC12 for <freebsd-questions@freebsd.org>; Mon, 17 Dec 2012 12:38:07 +0000 (UTC) Received: from EXCHANGE.mail.starnet.cz ([fe80::7534:a1f0:da0:e34d]) by EXCHANGE.mail.starnet.cz ([fe80::7534:a1f0:da0:e34d%15]) with mapi; Mon, 17 Dec 2012 13:36:59 +0100 From: =?iso-8859-2?Q?Radek_Krej=E8a?= <radek.krejca@starnet.cz> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Date: Mon, 17 Dec 2012 13:36:58 +0100 Subject: Unecpected change default route in 9.0, 8.2 Thread-Topic: Unecpected change default route in 9.0, 8.2 Thread-Index: Ac3cUzabAVg4D2pjQneu71cOHB8g/w== Message-ID: <B2E0472020754D45B72E9B0CE35278CA94ED50C64B@EXCHANGE.mail.starnet.cz> Accept-Language: cs-CZ Content-Language: cs-CZ X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: cs-CZ Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions <freebsd-questions.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>; List-Post: <mailto:freebsd-questions@freebsd.org> List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=subscribe> X-List-Received-Date: Mon, 17 Dec 2012 12:38:08 -0000 Hi, I have diskless routers, on one of theese I have problem, that default = gate is changing.=20 Image is clean and updated. There is no route daemon, no snmp, dhclient isn= t running. Whith resarch in cooperation in chzech bsd mailing list I get following thi= ngs: Ifconfig of this machine is: ifconfig -a: em0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=3D219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TS= O4,WOL_MAGIC> ether 00:25:90:a1:f5:a9 inet 178.255.168.19 netmask 0xfffff800 broadcast 178.255.175.255 inet6 fe80::225:90ff:fea1:f5a9%em0 prefixlen 64 scopeid 0x1 inet6 2a02:768:0:4000::19 prefixlen 64 nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active em1: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 = mtu 1500 options=3D219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TS= O4,WOL_MAGIC> ether 00:25:90:a1:f5:a8 inet6 fe80::225:90ff:fea1:f5a8%em1 prefixlen 64 scopeid 0x3 inet 10.1.11.1 netmask 0xfffffffc broadcast 10.1.11.3 nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active vlan304: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu = 1500 options=3D3<RXCSUM,TXCSUM> ether 00:25:90:a1:f5:a8 inet 10.219.11.97 netmask 0xffffffe0 broadcast 10.219.11.127 inet6 fe80::225:90ff:fea1:f5a8%vlan304 prefixlen 64 scopeid 0xb4 inet 10.9.114.1 netmask 0xfffffffc broadcast 10.9.114.3 nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active vlan: 304 parent interface: em1 After attack isnot affected. Ip of machine is 178.255.168.19, default route= is 178.255.168.254.=20 netstat -nr|less Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 178.255.168.254 UGS 0 8766645 em0 After change look like this: netstat -nr Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 189.71.208.123 UGS 1 1184931064 em0 This is example, ip of gateway is random. route monitor tells (there is other ip, route monitor runs later, on other = attack). got message of size 192 on Mon Dec 17 13:19:20 2012 RTM_DELETE: Delete Route: len 192, pid: 21546, seq 1, errno 0, flags:<GATEW= AY,DONE,STATIC> locks: inits: sockaddrs: <DST,GATEWAY,NETMASK> default 175.139.119.60 default Is possilble, that icmp redirect can change default route? No other user, t= han me, are logged to system. Thank you Radek
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