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Kshitij rana

kshitijrana14

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Joined 4 years ago

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All questions must be answered. Here are the Answers given by this user in the Forum.

The command
**$ arch ***
is equivalent to
***$ uname -m***
but is twice as fast to type
4 years ago
Ques:  How to determine whether a given Linux is 32 bit or 64 bit?
Try:
***ssh -t remotehost "sudo "***
This will remove the above errors.
4 years ago
Ques:  How to fix 'sudo: no tty present and no askpass program specified' error?
Create the file using **cat**
**$ cat > myfile.txt**
Now, just type whatever you want in the file:
**Hello World!**
CTRL-D to save and exit
4 years ago
Ques:  How to create a file in Linux from terminal window?
another solution disown the job
***$ nohup node server.js &
[1] 1711
$ disown -h %1***
4 years ago
Ques:  How to run Node.js as a background process and never die?
I'm doing like that:
***$('
',{
text: 'Div text',
class: 'className'
}).appendTo('#parentDiv');***
4 years ago
Ques:  JQuery document.createElement equivalent?
***
Go Home***
Hover is a pseudo class, and thus cannot be applied with a style attribute. It is part of the selector.
4 years ago
Ques:  How to write a:hover in inline CSS?
In case you're looking to print **unsigned long long** as I was, use:
***unsigned long long n;
printf("%llu", n);***
4 years ago
Ques:  What is the argument for printf that formats a long?
It can be **%f**,** %g** or **%e** depending on how you want the number to be formatted.The **l** modifier is required in **scanf** with **double**, but not in **printf**.
4 years ago
Ques:  Correct format specifier for double in printf
***typedef std::vector arr;
arr a {10, 20, 30}; // This would be how you initialize while defining***
To compile use:
***clang++ -std=c++11 -stdlib=libc++ ***
4 years ago
Ques:  What is the easiest way to initialize a std::vector with hardcoded elements?
If your base class is called **Base**, and your function is called **FooBar()** you can call it directly using **Base::FooBar()**

***void Base::FooBar()
{
printf("in Base\n");
}

void ChildOfBase::FooBar()
{
Base::FooBar();
}***
4 years ago
Ques:  How to call a parent class function from derived class function?
With boost you can use **any_of_equal**:
***#include
bool item_present = boost::algorithm::any_of_equal(vector, element);***
4 years ago
Ques:  How to find out if an item is present in a std::vector?
***#include
#include

std::ostringstream o;
o << name << age;
std::cout << o.str();***
4 years ago
Ques:  How to concatenate a std::string and an int