Hi,
I have a fixed width file with some records as given below:
" 1000Nalsdjflj243324jljlj"
"-0300Njfowjljl309933fsf"
" 0010Njsfsjklj342344fsl"
I want to sum-up first field values(i.e from 2nd character to 6th character)of each record.
so for the above file i want to add (1000 - 300+... (2 Replies)
Can someone help me again, I think with awk? I have a file with 4 columns (pipe-delimited):
I just want to convert the last field so that e1 is now 'message 1', e2 is 'message 2', e0 is 'message 3', etc. I don't want to change any other columns because the e0-e10 code may appear as part of a... (4 Replies)
Hi friends,
This is sed & awk type question.
I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example
###start of input text file ####
abc
def
ghi
1
2
3
4
kjld
random... (3 Replies)
Hi friends,
This is sed & awk type question. It is slightly different from my previous question.
I have a text file which has numbers spread all over the file. I want to sum the series of numbers (but no more than 10 numbers in series) whenever i find it and produce an output file with the... (4 Replies)
I was playing around to see how stuff works, and was trying to sum all fields in a file.
cat file
1 2 3 4
5 6 7 8
9 10 11 12
I made this script:
awk 'BEGIN {OFS=RS}{$1=$1}{s+=$0} END {print "sum="s}' file
This gives 15, why not 78?
I test it like this
awk 'BEGIN... (5 Replies)
Hi
I need to generate these output file from the below input file.
Output :
customer_id as customer,
zip as zip_cd,
catg_cd as catg,
Input:
out.customer::in.customer_id;
out.zip_cd::in.zip;
out.catg::in.catg_cd;
Could you please help me on this.
Please use code tags next... (1 Reply)
Hello All,
Here is am trying to get maximum value of third field depending on
first,second and fourth fields with awk command . delimeter is pipe(|) .
input
0221|09|14.25|aaa
0221|09|44.27|aaa
0221|09|44.33|aaa
0221|09|44.53|bbb
0221|09|34.32|bbb
0221|09|37.13|bbb... (5 Replies)
In the awk below, what I am attempting to do is check each line in the tab-delimeted input, which has ~20 lines in it, for a keyword
SVTYPE=Fusion. If the keyword is found I am splitting $3 using the . (dot) and reading the portion before and after the dot in an array a.
If it does have that... (12 Replies)
Hi there,
I have data with similar structure as this:
CHR START-SNP END-SNP REF ALT PATIENT1 PATIENT2 PATIENT3 PATIENT4
chr1 69511 69511 A G homo hetero homo hetero
chr2 69513 69513 T C . hetero homo hetero
chr3 69814 69814 G C . . homo homo
chr4 69815 69815 C A hetero . . hetero
is... (10 Replies)
Discussion started by: daashti
10 Replies
LEARN ABOUT PHP
openssl_random_pseudo_bytes
OPENSSL_RANDOM_PSEUDO_BYTES(3) 1 OPENSSL_RANDOM_PSEUDO_BYTES(3)openssl_random_pseudo_bytes - Generate a pseudo-random string of bytesSYNOPSIS
string openssl_random_pseudo_bytes (int $length, [bool &$crypto_strong])
DESCRIPTION
Generates a string of pseudo-random bytes, with the number of bytes determined by the $length parameter.
It also indicates if a cryptographically strong algorithm was used to produce the pseudo-random bytes, and does this via the optional
$crypto_strong parameter. It's rare for this to be FALSE, but some systems may be broken or old.
PARAMETERS
o $length
- The length of the desired string of bytes. Must be a positive integer. PHP will try to cast this parameter to a non-null integer
to use it.
o $crypto_strong
- If passed into the function, this will hold a boolean value that determines if the algorithm used was "cryptographically
strong", e.g., safe for usage with GPG, passwords, etc. TRUE if it did, otherwise FALSE
RETURN VALUES
Returns the generated string of bytes on success, or FALSE on failure.
EXAMPLES
Example #1
openssl_random_pseudo_bytes(3) example
<?php
for ($i = -1; $i <= 4; $i++) {
$bytes = openssl_random_pseudo_bytes($i, $cstrong);
$hex = bin2hex($bytes);
echo "Lengths: Bytes: $i and Hex: " . strlen($hex) . PHP_EOL;
var_dump($hex);
var_dump($cstrong);
echo PHP_EOL;
}
?>
The above example will output something similar to:
Lengths: Bytes: -1 and Hex: 0
string(0) ""
NULL
Lengths: Bytes: 0 and Hex: 0
string(0) ""
NULL
Lengths: Bytes: 1 and Hex: 2
string(2) "42"
bool(true)
Lengths: Bytes: 2 and Hex: 4
string(4) "dc6e"
bool(true)
Lengths: Bytes: 3 and Hex: 6
string(6) "288591"
bool(true)
Lengths: Bytes: 4 and Hex: 8
string(8) "ab86d144"
bool(true)
SEE ALSO random_bytes(3), bin2hex(3), crypt(3), mt_rand(3), uniqid(3).
PHP Documentation Group OPENSSL_RANDOM_PSEUDO_BYTES(3)