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hello

I have a C program and I want to read data from a socket ,and especially I want a client to send a .jpg to the server.The problem I face is that no matter what the size of the photo is,my...

hi everyone

I have a C program where I have a line and I want to check if the line contains a string.The line is stored in a buffer.How can I do that?
Can I consider the whole line as a string...

no it doesn't have to be sed.The only thing is that is a bash script.
Is this a problem for using perl?

hello everyone

I'm writing a bash script and I have to parse a line that looks as follows:

a/ b:4 word=egg things.?/things2//

no matter what other words or characters exist in the line,I...

That's strange because not only compiles fine but works as well...
So if I want to pass the whole array I have to do it the way I said before?

Actually I changed the a[i] to &a[i]
and works fine.
One more question,if I want to send in a function not only one element:
&a[i]
but all of them do I simply do:

funct(a);//a is the void**
...

The thing is that when I try to refer to one element of the array,that means to one void* it doesn't work.
For example when I had:

main(){
void* a;
fun(&a); //call a function named fun...

I want to have n void*.
But n is an argument to the function,that's why I thought it would be better if I had an array of void*

hi guys!

Is there such a thing as double void pointer dynamic allocation?
And if so is it something like this?

int n;
void** a;
a=malloc(n*sizeof(void*));

Ok for the case snsitive but also I have http and I want https ..
any ideas for that?

hi guys

in my bash script I call wget to check for valid links like this:

wget -q "$1" -O- | grep -ow "href=\"http://[^\"]*\"" | sed -e 's/href=//g' -e 's/"//g'


but this only finds the...

1)yes the files are sorted

2)no the output order is not at all important

3)lines appear either once or twice

4)that's not known..some files have 500 lines or more and some 4...

I found...

hello all

in my bash script I have a file and I only want to keep the lines that appear twice in the file.Is there a way to do this?
thanks in advance!

hi guys

in my bash script I have a file which has lines that look the following way:

dog cat "bird" red/ [green] (blue/pink)

OR

dog cat "bird" red/ [green/green] (blue/pink)

no matter...

hi guys

how can I allocate a double char pointer?
I want an array of pointers to char[] objects.

the objects the double pointer points to are :


char b[1024];

Could you give me an example?

hi guys
In my bash script I need to use ascii characters such as SYN(22) and US(31).
How do I echo them?

I have a main parent code that collects data from every process it forks and then prints all of the data to a file.a child starts collecting data only when receiving a message.Otherwise waits.
The...

The parent process sends a string message to the children in order to do some things.When a child is finished waits for the next string message.Only one child can deal with each message but there's a...

I see.So if I understood correctly the parent has a pipe for each of its children and depending on what child it wants to wake up writes to that pipe right?
But how does the parent know which...

So in that case the parent doesn't have to use the wait-status at all right?
(I forgot to mention that when the parent wants all of its children to terminate it sends a certain signal..)

hi all!

In my C++ program I have a parent process which forks 5 children processes.The processes do a job and then they have to do some sort of sleeping(not terminate) until the parent wakes them...

Hello everyone!

I'm writing a C++ program and I use a hash table which contains strings.
Its the first time I have to deal with strings since the only thing I have done so far is for integers and...

you mean something like this:


awk -F["\(\)"]


because it's not working and I assume there's syntax error

---------- Post updated at 11:45 AM ---------- Previous update was at 09:40 AM...

Great!Thanks a lot everybody!

---------- Post updated at 08:43 AM ---------- Previous update was at 06:26 AM ----------

I was wondering what if the required field is not inside "" but inside...