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Yes, still practicing, and making a script for the children.
So far thanks for your information. Together with the above script I have a second script. (see below)

What goes wrong is, when a...

Almost!
But this looks very well devrmike.

What now happens is that I get the next while running the script:

~$ bash test1
1 * 1 =
1
test1: line 8: [1: command not found
Wrong!
...

Yes what I see is the whole list. Thanks! That is great.

How can we now change this, so that one question will be asked one by one.

It's like 3*3 = .... the question must be filled in. If...

I have not done anything, I was experimenting on different scripts with:
- bc
- expr
- asking questions like:
trap
trap 'echo thanks for the math' EXIT
MATH=$((9))
echo '3*3='
while read -p...

Hello!

I saw that there were a few differente ways to do math within bash scripts.

expr and bc are possibilities. But which one to use when?


I want to make an simple bash script for...

So far so good.....


ifconfig | grep 'Bcast:' | cut -d: -f3 | awk '{print $1}'


with the above I can see by broadcast IP...
but how can I tell the script in the same line to ping the...

Many thanks for this one...
The above script is working! I can ping from beginning to ending IP-adresses very fast!

Lets go to the second part... :)
When no beginning and ending IP is given,...

What in the above script will change when it is 255.255.254.0?

And if I run the above script I get the next error:
unix1: line 7: ((: .100: syntax error: operand expected (error token is...

Hmm.. the bash script is not working..
But this one is usefull, thanks for that!
IP=192.168.1.5 SUBNET=${IP%.*} echo $SUBNET 192.168.1And now the second part: the below script will ping the given...

I use the script below to see my own IP from bash script:
#!/bin/bash
ifconfig | grep 'inet addr:' | grep -v '127.0.0.1' |
cut -d: -f2 | awk '{ print $1 }'
It will show your IP. If my IP is...

I have a question for one who wants to help me.

I want to create a bash script to ping IP-adresses. It must first ask me the beginnen IP, then the ending IP like: 192.168.100.1 - 192.168.100.255....