Hello.
I face this (2 side) problem.
Some lines with this structure.
...........
12345678 4
12345989 13
12346356 205
12346644 74
12346819 22
.........
The first field (timestamp) is growing (or at least equal).
1)Sum the second fields if the first_field/500 are... (8 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)
Hi,
I am using the following code to find the sum of the values of column 286 in a file. It will have the Decimal values with the scale of 2. Delimiter is '|^'
cut -d'|^' -f286 filename|cut -c3-| awk '{ x += $1 } END { printf("%.2f\n", x) }'
There are around 50k records in this file... (2 Replies)
Hello,
I am new to Linux environment , I working on Linux script which should send auto email based on the specific condition from log file. Below is the sample log file
Name m/c usage
abc xxx 10
abc xxx 20
abc xxx 5
xyz ... (6 Replies)
I need to sum values in text file in case duplicate row are present with same name and different value below is example of data in file i have and format i need.
Data in text file
20170308
PM,U,2
PM,U,113
PM,I,123
DA,U,135
DA,I,113
DA,I,1
20170309
PM,U,2
PM,U,1
PM,I,123
PM,I,1... (3 Replies)
In the awk below I am trying to add a penalty to a score to each matching $1 in file2 based on the sum of $3+$4 (variable TL) from file1. Then the $4 value in file1 is divided by TL and multiplied by 100 (this valvue is variable S). Finally, $2 in file2 - S gives the updated $2 result in file2.... (2 Replies)
I have two files, file1.table is the count table, and the other is the range condition file2.range.
file1.table
chr start end count
N1 0 48 1
N1 48 181 2
N1 181 193 0
N1 193 326 2
N1 326 457 0
N1 457 471 1
N1 471 590 2
N1 590 604 1
N1 604 752 1
N1 752 875 1
file2.range... (12 Replies)
Discussion started by: yifangt
12 Replies
LEARN ABOUT PHP
mysqli_fetch_fields
MYSQLI_FETCH_FIELDS(3) 1 MYSQLI_FETCH_FIELDS(3)mysqli_result::fetch_fields - Returns an array of objects representing the fields in a result set
Object oriented style
SYNOPSIS
array mysqli_result::fetch_fields (void )
DESCRIPTION
Procedural style
array mysqli_fetch_fields (mysqli_result $result)
This function serves an identical purpose to the mysqli_fetch_field(3) function with the single difference that, instead of returning one
object at a time for each field, the columns are returned as an array of objects.
PARAMETERS
o $
result -Procedural style only: A result set identifier returned by mysqli_query(3), mysqli_store_result(3) or
mysqli_use_result(3).
RETURN VALUES
Returns an array of objects which contains field definition information or FALSE if no field information is available.
Object properties
+-----------+---------------------------------------------------+
| Property | |
| | |
| | Description |
| | |
+-----------+---------------------------------------------------+
| name | |
| | |
| | The name of the column |
| | |
| orgname | |
| | |
| | Original column name if an alias was specified |
| | |
| table | |
| | |
| | The name of the table this field belongs to (if |
| | not calculated) |
| | |
| orgtable | |
| | |
| | Original table name if an alias was specified |
| | |
|max_length | |
| | |
| | The maximum width of the field for the result |
| | set. |
| | |
| length | |
| | |
| | The width of the field, as specified in the table |
| | definition. |
| | |
|charsetnr | |
| | |
| | The character set number for the field. |
| | |
| flags | |
| | |
| | An integer representing the bit-flags for the |
| | field. |
| | |
| type | |
| | |
| | The data type used for this field |
| | |
| decimals | |
| | |
| | The number of decimals used (for integer fields) |
| | |
+-----------+---------------------------------------------------+
EXAMPLES
Example #1
Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
$query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5";
if ($result = $mysqli->query($query)) {
/* Get field information for all columns */
$finfo = $result->fetch_fields();
foreach ($finfo as $val) {
printf("Name: %s
", $val->name);
printf("Table: %s
", $val->table);
printf("max. Len: %d
", $val->max_length);
printf("Flags: %d
", $val->flags);
printf("Type: %d
", $val->type);
}
$result->close();
}
/* close connection */
$mysqli->close();
?>
Example #2
Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
$query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5";
if ($result = mysqli_query($link, $query)) {
/* Get field information for all columns */
$finfo = mysqli_fetch_fields($result);
foreach ($finfo as $val) {
printf("Name: %s
", $val->name);
printf("Table: %s
", $val->table);
printf("max. Len: %d
", $val->max_length);
printf("Flags: %d
", $val->flags);
printf("Type: %d
", $val->type);
}
mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
Name: Name
Table: Country
max. Len: 11
Flags: 1
Type: 254
Name: SurfaceArea
Table: Country
max. Len: 10
Flags: 32769
Type: 4
SEE ALSO mysqli_num_fields(3), mysqli_fetch_field_direct(3), mysqli_fetch_field(3).
PHP Documentation Group MYSQLI_FETCH_FIELDS(3)