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get a variable's content, from the contents of another variable, both variable names have the same trailing number

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http://stackoverflow.com – in a bash script, How do I get a variable's content, from the contents of another variable, both variable names have the same trailing number? IP1=192.168.0.17 DIR1=/mnt/2tb/archive/src/ IP2=192.168.0.11 DIR2=~/src/ IP3=192.168.0.113 DIR3=~/src/ #get local ip and set variable HOST to local ip HOST=$(ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}') # get HOST source DIR as variable from ip and preset variables echo $HOSTDIR (HowTos)

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Submitted by fooubuntu on 01/12/2013 – Made popular on 01/12/2013

Stories similar to get a variable's content, from the contents of another variable, both variable names have the same trailing number

is this possible?

its kind of like incrementing the value of a number in a variable. but in this case, instead of the value of the variable being a number, it's just contents/strings/characters/alpha-numeric etc.

i have a variable that has more than one value. i am declaring another variable, which will have the old variable data one by one. i want to use the second variable to hold the track of all the variable it has parsed from the first one.

The only calculator I know is bc. I want to add 1 to a variable, and output to another variable.

I got the nextnum variable from counting string in a file:

nextnum=`grep -o stringtocount file.tpl.php | wc -w`

Lets say the nextnum value is 1. When added with 1, it will become 2.

In the code, I have an integer variable. In the GUI, I have a numeric editText field and two buttons which increase/decrease the value of the variable by one.

I need to link the field to the variable so that the field shows the current value of the variable every time it's changed (ie.

read variable substitution 1 year 17 weeks ago

Allright so a quick question.

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

I am writing my first udev rule.

Anyone knows how to set variable in TCL ?

let say i have a password variable and it will have different values.

set variable

and variable has different values like:

xxxx yyyy zzzz

hi ,

please help me in this context

pkg1_name="/dir1/dir2/dir3/pkg1.txt" pkg2_name="/dir1/dir2/dir4/pkg2.txt" . . .

input to the script is pkg1 or pkg2 or ...

i have used pkg variable to save input i.e. pkg=$1

now i need the following

result=`awk something ${pkg}_name ` for each file

but the output is showing error as

pkg1_name : no such file or d

Variables in perl 37 weeks 2 days ago

I don't fully understand variables in perl.

If we have a variable defined like this "my $number = 1" then this is called a lexical variable? But if you define this at the top of a script then why isn't it a global variable because it would be available throughout the file?

Sorry if this is a really stupid question to ask but I'm getting myself confused.