Explanation:
To understand how this program is working let us print the variable value at different stages of the program so that we can understand how it is working.
Intitally, value=10 when it was declared.
Then we added 5 and it become value=15
then we used fork() function which creates a parent(orignal) and child(duplicate)
When fork() succeeds it returns the child pid to parent and returns 0 to the child. As you can see (pid > 0) condition is always true therefore the parent pid value becomes 35 ( 15+20) and the child pid value becomes 0.
#include <stdio.h>
#include <unistd.h>
int main( ) {
int value = 10;
printf("%d\n",value);
int pid;
value += 5;
printf("%d\n",value);
pid = fork( );
printf("%d\n",pid);
if (pid > 0 )
{
value += 20;
}
printf("%d\n",value);
return 0;
}
Output:
10 (initial value)
15 (modified value)
5343 (pid when fork is used)
35 (final modified value)
0 (child value)
15 (the parent value when fork was used)
Answer:
The main purpose of the file name extension is that in the operating system it basically helpful for knowing the actual name of the file which we want to open in the system. The file name extension is also known as file suffix and file extension.
The file name extension are the character and gathering of the given characters after some time period that making the whole name of the record in the file system.
It basically enables a working framework, such as Windows and mac operating system (OS), figure out which programming on our PC the document is related with the particular file.
We can easily restore our file from hard disk system by two main ways as follows:
- We can easily recover our file from the computer backup.
- Checked your deleted file in the recycle bin and then restore it.
Answer:
The answer is YES.
Explanation:
<em>Things pertaining to weapons, destructive materials should be shared with precautions or much better if these things should not be put online. Since internet is widely available to almost all types of users and almost to all places, we cannot be sure of who will get hold of these information. Kids could easily see this and gain knowledge and out of curiosity will try these dangerous things. Terrorist groups will also have access to these information and who knows might happen to poor innocent souls around. </em>
<em>
</em>
<em>I don't think it would violate the right of First Amendment regarding freedom of speech. Freedom should be granted on matters that are most sensible. And this time, we are just protecting the rights of children and other innocent people who can be a victim including you. We are talking about weapons and destructive materials here which is non beneficial if one could get hold of this information, in my opinion. If there is really a need to construct these things, it is better to consult an expert or an authority to ensure that nobody gets harm.</em>
The answer to your question is true
