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Your replies saved lot of time in learning shell script and made life easier ;)

* I downloaded Fedora 19
* I installed it in my laptop
* I created that simple shell script and executed to know...

I understood that pointsb will hold the values of awk's execution

pointsb = 'final result of awk'
What does that awk do?

It does some looping and prints x,y values. I assume it will be stored...

Is it not possible to write the line of code without awk then?

pointsb=`awk -v a2="$a2" -v b2="$b2" -v c2="$c2" -v yb="$yb" -v yc="$yc" \
'BEGIN { for (y=yc; y<=yb; y++) { x = a2*y*y+b2*y+c2; print x, y }; }'`

can write it like this?
pointsb = ""
for...

What is the job print x,y here?

and assuming that x becomes 25 at the end of the loop, what will be the value of pointsb

pointsb=`awk -v a2="$a2" -v b2="$b2" -v c2="$c2" -v yb="$yb" -v yc="$yc" \
'BEGIN { for (y=yc; y<=yb; y++) { x = a2*y*y+b2*y+c2; print x, y }; }'`

I am learning shell script. I was reading a...

I didn't get help from host. I will check the user uploading form.

Can you tell me what has he tried / done in my server from this coding?

#!/usr/bin/perl -w



if(@ARGV < 1){

print q ...

Hi,

Recently my has been hacked. A .pl script has been uploaded in the root of the directory, which uploaded lot of unwanted files and changed their file permission to 777.

I have no clue how...