awk - change variable on fly Post: 302627381

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Make change to variable value inside of awk script

Hello, I have text data that looks like this, Mrv16a3102061815532D 6 6 0 0 0 0 999 V2000 -0.4018 1.9634 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.1163 1.5509 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.1163 0.7259 ...

LEARN ABOUT NETBSD

route.conf

ROUTE.CONF(5)						      BSD File Formats Manual						     ROUTE.CONF(5)

NAME

     route.conf -- static routes config file

DESCRIPTION

     The route.conf file is read by the staticroute rc.d script during system start-up and shutdown, and is intended for adding and removing
     static routes.

   FILE FORMAT
     Lines starting with a hash ('#') are comments and ignored.  Lines starting with a plus sign ('+') are run during start-up, while lines start-
     ing with a minus sign ('-') are run during system shutdown.  If a line starts with a '!', the rest of the line will get evaluated as a shell
     script fragment.  All other lines are passed to route(8).	During start-up, they are passed behind a ``route add -'' command and during shut-
     down behind a ``route delete -'' command.

FILES

     /etc/route.conf	 The route.conf file resides in /etc.

     /etc/rc.d/staticroute
			 rc.d(8) script that parses route.conf.

EXAMPLES

     In this example, the interface for the desired routing changes is set, the IP address on that interface is determined, and a route is added
     during startup, or deleted during system shutdown.

	   # Set interface and determine current IP address for added route.
	   !ifname=bnx0
	   !ipaddr=$(/sbin/ifconfig ${ifname} | awk '$1 == "inet" {print $2}')
	   net 10.10.1 -interface ${ipaddr}

     In this example, IP forwarding is turned on during start-up, and a static route added for 192.168.2.0.  During system shutdown, the route is
     removed and IP forwarding turned off.

	   # Turn on/off IP forwarding.
	   +sysctl -w net.inet.ip.forwarding=1
	   -sysctl -w net.inet.ip.forwarding=0
	   net 192.168.2.0 -netmask 255.255.255.0 192.168.150.2

SEE ALSO

     rc.conf(5), rc(8), route(8)

BSD
								    May 1, 2012 							       BSD

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to change awk and shell variable value?

Discussion started by: cola

2. Shell Programming and Scripting

Change only the name of a variable

Discussion started by: lydiaflamp

3. Shell Programming and Scripting

awk: change string variable

Discussion started by: cintlt

4. Shell Programming and Scripting

Store Host lookup in variable ("on the fly")

Discussion started by: sOliver