01-20-2014
An explanation of my previous post follows.
The shell runs the awk command and passes a (multi-line) argument in ticks, and another argument (file). (The ticks are also called single quotes.)
The awk sees two statements in the 1st argument.
awk statements are usually in curly brackets. Here they are prefixed with a condition (implicit if clause).
Multiple statements in a curly bracket block are separated by a semicolon - or are on separate lines.
awk runs the statements for each line of its input file(s).
The logic is simple here:
if Sheep is found in the current input line, store 1 in a variable (count). Note that initially a variable is empty (0 in number context).
If found is equal to 1 (because was set to 1 in this or a previous input line) and Realized is found in the current input line then print the new line; also reset found to 0 so if Realized is met again it won't print another new line.
Then (I just added it to my previous post) print the input line.
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REMQUO(3) BSD Library Functions Manual REMQUO(3)
NAME
remquo -- floating-point remainder and quotient function
SYNOPSIS
#include <math.h>
double
remquo(double x, double y, int *quo);
long double
remquol(long double x, long double y, int *quo);
float
remquof(float x, float y, int *quo);
DESCRIPTION
The remquo() functions compute the value r such that r = x - n*y, where n is the integer nearest the exact value of x/y.
If there are two integers closest to x/y, n shall be the even one. If r is zero, it is given the same sign as x. This is the same value that
is returned by the remainder() function. remquo() also calculates the lower seven bits of the integral quotient x/y, and gives that value
the same sign as x/y. It stores this signed value in the object pointed to by quo.
SPECIAL VALUES
remquo(x, y, quo) returns a NaN and raises the "invalid" floating-point exception if x is infinite or y is 0.
VECTOR OPERATIONS
If you need to apply the remquo() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
give significantly better performance:
#include <Accelerate/Accelerate.h>
vFloat vremquo(vFloat x, vFloat y, vUInt32 *q);
SEE ALSO
math(3), remainder(3)
STANDARDS
The remquo() functions conform to ISO/IEC 9899:2011.
BSD
December 11, 2006 BSD