Describe a common use of the built-in variable $$.

What will be an ideal response?


The built-in variable $$ contains the current process ID. In shell scripts, this is often used,
appended to a filename, to generate a temporary filename that should be unique.

Computer Science & Information Technology

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Given the following function definitions and program fragments, what is the output?

void f1(int& z, int &q) { int temp; temp=q; q=z; z=temp; } void f2( int& a, int& b) { if( a

Computer Science & Information Technology

Which of the following describes the act of ensuring that a program solves the intended problem in all cases?

a) establishing the requirements b) testing c) preliminary practice coding d) implementing the design e) creating a design

Computer Science & Information Technology

The Zoom control is displayed within the _____.

A. Quick Access toolbar B. status bar C. title bar D. ribbon

Computer Science & Information Technology

Identify the compiler errors, and state what is needed to eliminate the error(s).

``` #include using namespace standard; int main() { int a,4_for_Fun; cout << Enter a; cin >> a; 4_for_Fun = a; return 0; } ```

Computer Science & Information Technology