I'm building a script that will eventually do a full IP subnet scan.
It starts off by first entering an IP address, (capturing host and net ID comes after that) and I want it to use the current IP address if no input is given.
Is there a quick way to define the value of the variable I want to read when no value is given?
Now I've already figured out how to extract the IP address from ifconfig using:
So what's the quickest way to go about in giving TARGETSUBNET the value of CURRENTIP when no input is given for read?
Cheers,
Marc
Last edited by joeyg; 01-20-2012 at 03:50 PM..
Reason: Please wrap scripts and text inside CodeTags.
Hey All,
I'm trying to clean up a variable using sed but It dosn't seem to work. I'm trying to find all the spaces and replace them with "\ " (a slash and a space). For Example "Hello World" should become "Hello\ World". But it does nothing. If I put it directly into the command line it works... (3 Replies)
Hi everyone,
I have a simple question to ask :
In a script that I'm writting, I need to create variables on-the-fly.
For instance, for every iterartion of the following loop a var_X variable should be generated :
#!/bin/ksh
a="1 2 3"
for i in $a
do
var_${i}=$i
echo "${var_$i}"
done
... (1 Reply)
I have run into a wall with my iptables firewall scripting.
I am blocking all of the private side IP addresses on the
WAN interface on systems running NAT. However, if the
system is not running NAT and needs to allow access to
the local LAN on the WAN interface, I need to block all
but one of... (2 Replies)
Hello,
i have another sed question.. I'm trying to do variable substition with sed and i'm running into a problem.
my var1 is a string constructed like this:
filename1 filerev1 filepath1
my var2 is another string constructed like this:
filename2 filerev2 filepath2
when i do... (2 Replies)
Hi,
That might be pretty simple.
How can I generate a variable name and get their value ?
Thanks a lot.
Something like:
>CUSTOMER_NF=26
> object=CUSTOMER
> echo ${object}_NF
CUSTOMER_NF
> echo ${${object}_NF}
ksh: ${${object}_NF}: 0403-011 The specified substitution is... (7 Replies)
file1.ksh
#!/bin/ksh
test5_create="I am a man" # test5 will be dynamic and the value will be passed from command line
a=${1}_create
echo $a # i need the output as "I am a man"
./file1.ksh test5 # i run the script like this
any suggessions guys... (1 Reply)
Hi ,
I have a variable as follows,
Temp=`cat ABC.txt | cut -c5-`
This will yeild a part of the date. say , 200912.
I would like to substitute this variable's value in a filename.
eg: File200912F.zip
when i say File$TempF.zip , it is not substituting.
Any help ?
Thanks in... (2 Replies)
For example I have variable like below
echo $OUTPUT
/some/path/`uname -n`
when I try to use the variable OUTPUT like below
cd $OUTPUT or cd ${OUTPUT}
I am getting bad substituion error message
$ cd $OUTPUT
ksh: cd: bad substitution
$ cd ${OUTPUT}
ksh: cd: bad substitution
... (1 Reply)
Hi,
I have to write a shell script in which I have to substitute a variable within a variable. For example,
var1=aaa
var2=file.$var1.txt
The output should be,
echo $var2
file.aaa.txt
Can someone please help me in getting this. I tried using eval, but it didnt work. I might be using it... (2 Replies)
Hi all,
Actually I have a huge bash file like:
port1=$PORT && if ; then .....
....stuff
port2=$PORT && if ; then .....
...stuff
port3=$PORT && if ; then .....
...stuff
port4=$PORT && if ; then .....
...stuff
port5=$PORT && if ; then .....
I would like to change the $port inside... (2 Replies)
Discussion started by: Dedalus
2 Replies
LEARN ABOUT HPUX
rc.config
rc.config(4) Kernel Interfaces Manual rc.config(4)NAME
rc.config, rc.config.d - files containing system configuration information
SYNOPSIS DESCRIPTION
The system configuration used at startup is contained in files within the directory The file sources all of the files within and and
exports their contents to the environment.
/etc/rc.config
The file is a script that sources all of the scripts, and also sources To read the configuration definitions, only this file need be
sourced. This file is sourced by whenever it is run, such as when the command is run to transition between run states. Each file that
exists in is sourced, without regard to which startup scripts are to be executed.
/etc/rc.config.d
The configuration information is structured as a directory of files, rather than as a single file containing the same information. This
allows developers to create and manage their own configuration files here, without the complications of shared ownership and access of a
common file.
/etc/rc.config.d/* Files
This is where files containing configuration variable assignments are located.
Configuration scripts must be written to be read by the POSIX shell, and not the Bourne shell, or In some cases, these files must also be
read and possibly modified by control scripts or the sam program. See sd(4) and sam(1M). For this reason, each variable definition must
appear on a separate line, with the syntax:
No trailing comments may appear on a variable definition line. Comment statements must be on separate lines, with the comment character in
column one. This example shows the required syntax for configuration files:
Configuration variables may be declared as array parameters when describing multiple instances of the variable configuration. For example,
a system may contain two network interfaces, each having a unique IP address and subnet mask (see ifconfig(1M)). An example of such a dec-
laration is as follows:
Note that there must be no requirements on the order of the files sourced. This means configuration files must not refer to variables
defined in other configuration files, since there is no guarantee that the variable being referenced is currently defined. There is no
protection against environment variable namespace collision in these configuration files. Programmers must take care to avoid such prob-
lems.
/etc/TIMEZONE
The file contains the definition of the environment variable. This file is required by POSIX. It is sourced by at the same time the files
are sourced.
SEE ALSO rc(1M).
rc.config(4)