Base on my experience by default awk will use incremental traversal , maybe I'm wrong.
You're wrong. RudiC is correct. As an example, on OS X version 10.11.3 the command:
produces the output:
Using a different version of awk should produce the same lines of output, but the order in which they are printed is specifically not specified by the standards.
This User Gave Thanks to Don Cragun For This Post:
Dear sirs,
I am new to DataBase in C++,Also here iam using mysql,
How can do it nad get the result back from the database and do operation onit.
Thanks in advance,
arunkumar (2 Replies)
Hi All,
I am having trouble through, I am reading the input from tab delimited file containing several records,
e.g.
line1 field1 field2 field3 so on..
line2 field1 field2 field3 so on..
..
..
on the basis of certain fields for each record in input file, I have to retrieve... (1 Reply)
Hello
I want to grep data from header of the files . The header conatins data in this format .
# $maint$ test1
# $product$ TTT
I want to store maint name and product name with path of file . (12 Replies)
hello everyone
I need to update data base in file
1-ID
2-Name
3-ID group
4-ID teacher
5-mark list
unique ID is (ID+ID group+ID teacher)
we can append 5 th columns (marks list)
main base file:
Code:
1:John:3:1:4 3 2
2:Mark:1:2:1 3
3:Susan:3:4:
input file: (1 Reply)
HI
I have input file A.txt
X
Y
Z
File B.txt
1 X 10 AAA 11123
2 Y 22 PlD 4563
3 Z 55 PlD 54645
4 Z 66 PlD 15698
5 F 44 PlD 154798
6 C 55 PlD 12554
7 Z 88 PlD 23265
8 C 99 PlD 151654
9 C 11 PlD 21546546
I need New File C.txt (1 Reply)
Hi All,
I have the file in following format. I need to change column 16 and column 17 for those lines which has atleast one numerical digit in column 2 , with the exception on SUPP1
Input file :
S00005615|1044|0|0.00|0|0.00| |112|-30|28.1|0|0| |20130331|220.2|2|3|... (2 Replies)
Base of last two column i want to change may data
if Last two Column have A and C then Copy Column $4 to Column $3.
Input :-
DD142 0_1 DD142_A DD142_B A B
DD142 1_1 DD142_B DD142_C B C
DD142 2_1 DD142_A DD142_C A C
DD142 3_1 DD142_A A
DD142 3_2 DD142_A A
DD142 4_1 DD142_B B ... (4 Replies)
HI
Want to grep data from column header and match with second file.
File A.txt
1 2 3 4 5 6
X1 A L D J Q R
X2 B M K P w T
X3 C S L P e Y
X4 R Z M A r U
FileB.txt
1
2
3
4
6
7 (3 Replies)
Discussion started by: pareshkp
3 Replies
LEARN ABOUT PHP
is_scalar
IS_SCALAR(3) 1 IS_SCALAR(3)is_scalar - Finds whether a variable is a scalarSYNOPSIS
bool is_scalar (mixed $var)
DESCRIPTION
Finds whether the given variable is a scalar.
Scalar variables are those containing an integer, float, string or boolean. Types array, object and resource are not scalar.
Note
is_scalar(3) does not consider resource type values to be scalar as resources are abstract datatypes which are currently based on
integers. This implementation detail should not be relied upon, as it may change.
Note
is_scalar(3) does not consider NULL to be scalar.
PARAMETERS
o $var
- The variable being evaluated.
RETURN VALUES
Returns TRUE if $var is a scalar, FALSE otherwise.
EXAMPLES
Example #1
is_scalar(3) example
<?php
function show_var($var)
{
if (is_scalar($var)) {
echo $var;
} else {
var_dump($var);
}
}
$pi = 3.1416;
$proteins = array("hemoglobin", "cytochrome c oxidase", "ferredoxin");
show_var($pi);
show_var($proteins)
?>
The above example will output:
3.1416
array(3) {
[0]=>
string(10) "hemoglobin"
[1]=>
string(20) "cytochrome c oxidase"
[2]=>
string(10) "ferredoxin"
}
SEE ALSO is_float(3), is_int(3), is_numeric(3), is_real(3), is_string(3), is_bool(3), is_object(3), is_array(3).
PHP Documentation Group IS_SCALAR(3)