I'm trying to get awk to do arithmetic functions with external variables and I'm getting an error that I cannot figure out how to fix.
Insight would be appreciated
money=$1
rate1=$(awk -F"\t " '/'$converting'/{print $3}' convert.table)
rate2=$(awk -F"\t"... (2 Replies)
Hi all.
I have a simple shell script shown below which calls an awk function and then print valid or invalid depending on the return value:
#!/bin/sh
cat file.CSV| nawk -f validate '
BEGIN { FS=","; counter=0}
{
FS=",";
gsub("\"","")
valid=validate($1);
... (2 Replies)
Hi ,
I m facing one problem with String usage in AWK . let me put what i need .
i have a function and there i used one string ( meta_string)
function 1 {
...................
...................
meta_string = " this string got... (1 Reply)
I learn using RS in awk to extract portion of file in this forum which is wonderful solution to the problem. However, I don't understand how exactly it operates.
I don't quite understand the mechanism behind how searching for /DATA2/ can result in extracting the whole section under "DATA2"
... (3 Replies)
Hi;
Is der ne to to use user defined functions for the values in awk
find $1 -type f -ls | nawk '{{print "|"$3"|"$5"|"$6"|"$8"|"$9"|"$10"|"} for(i=11;i<=NF;i++){printf("%s",$i)}}'
In above command i want to append some values returned by user functions on line.
thnks;
ajay (1 Reply)
hi all,
i have these server logs:
25-04-2012;192.168.70.31;1254545454545417;500.0;SUCCESS
25-04-2012;192.168.70.32;355666650914;315126423993;;General_ERROR_23
30-04-2012;192.168.70.33;e;null;null;Failure
30-04-2012;192.168.70.33;e;null;null;Failure... (4 Replies)
I have 7 functions those need to be executed as command line inputs, I tried with below code it’s not executing function. If I run the ./script 2 then fun2 should execute , how to initiate that function I tried case and if else also, how to initiate function from command line
if
then... (8 Replies)
Hi folks,
is there any recommendation, especially from a point of performance, about where to place a user-defined function in awk, like in BEGIN{} or if it is only need once at the end in END{}? Or doesn't it matter at all since, awk is so clever and only interprets it once, wherever it is... (3 Replies)
I wrote a very simple script to understand how to call user-defined functions from within awk after reading this post.
function my_func_local {
echo "In func $1"
}
export -f my_func_local
echo $1 | awk -F"/" '{for (k=1;k<=NF;k++) {
if ($k == "a" ) {
system("my_local_func $k")
}
else{... (19 Replies)
Discussion started by: sreyan32
19 Replies
LEARN ABOUT OPENDARWIN
atan2
ATAN2(3) BSD Library Functions Manual ATAN2(3)NAME
atan2 -- arc tangent function of two variables
SYNOPSIS
#include <math.h>
double
atan2(double y, double x);
DESCRIPTION
The atan2() function computes the principal value of the arc tangent of y/x, using the signs of both arguments to determine the quadrant of
the return value.
SPECIAL VALUES
atan2(+-0, -0) returns +-pi.
atan2(+-0, +0) returns +-0.
atan2(+-0, x) returns +-pi for x < 0.
atan2(+-0, x) returns +-0 for x > 0.
atan2(y, +-0) returns -pi/2 for y > 0.
atan2(+-y, -infinity) returns +-pi for finite y > 0.
atan2(+-y, +infinity) returns +-0 for finite y > 0.
atan2(+-infinity, +x) returns +-pi/2 for finite x.
atan2(+-infinity, -infinity) returns +-3*pi/4.
atan2(+-infinity, +infinity) returns +-pi/4.
NOTES
The atan2() function is used mostly to convert from rectangular (x,y) to polar (r,theta) coordinates that must satisfy x = r*cos theta and y
= r*sin theta. In general, conversions to polar coordinates should be computed thus:
r := hypot(x,y); ... := sqrt(x*x+y*y)
theta := atan2(y,x).
SEE ALSO acos(3), asin(3), atan(3), cos(3), cosh(3), sin(3), sinh(3), tan(3), tanh(3), math(3),
STANDARDS
The atan2() function conforms to ISO/IEC 9899:1999(E).
BSD November 18, 2002 BSD