Awk takes input and creates "records" by delimiting by the value of RS. Awk delimits each "record" by the value of "FS", the field separator. You can then slice and dice each value of a field at your whim. In addition, if you dont have an easy way to split records and fields, Awk (gawk) allows you to define your own record by specifying column widths using the FIELDWIDTHS variable. Example
.....will define a record of fixed width including whitespace between columns. So $1 is defined as a field of 9 bytes, $2 is defined as a field of 6 bytes and so on.
I saw a couple of posts here referencing how to handle more than one input field separator in awk. I figured I would share how I (just!) figured out how to turn this line in a logfile:
90000000000000000000010001 name... (4 Replies)
How do I deal with extracting a portion of a record when multiple field separators are involved.
Let's say I have:
Mike Harrington;(555) 555-5555:250:100:175
Christian Dobbins;(555) 555-2358:155:90:201
Susan Dalsass;(555) 555-6279:250:60:50
Archie McNichol;(555) 555-1348:250:100:175
Jody... (3 Replies)
I need to print the second field of a file, taking spaces, tab and = as field separators.
; for 16-bit app support
MAPI=1
CMC=1
CMCDLLNAME32=mapi32.dll
CMCDLLNAME=mapi.dll
MAPIX=1
MAPIXVER=1.0.0.1
OLEMessaging=1
asf=MPEGVideo
asx=MPEGVideo
ivf=MPEGVideo
m3u=MPEGVideo (2 Replies)
Hi Guys,
I have small dilemma which I could do with a little help solving . I currently have text HDD S.M.A.R.T report which I have pasted below:
smartctl 5.39 2008-10-24 22:33 (openSUSE RPM)
Copyright (C) 2002-8 by Bruce Allen, http://smartmontools.sourceforge.net
Device: COMPAQ... (2 Replies)
I've two files with data like below:
file1.txt:
AAA,Apples,123
BBB,Bananas,124
CCC,Carrot,125
file2.txt:
Store1|AAA|123|11
Store2|BBB|124|23
Store3|CCC|125|57
Store4|DDD|126|38
So,the field separator in file1.txt is a comma and in file2.txt,it is |
Now,the output should be... (2 Replies)
I have files such as
n02-z30-dsr65-terr0.25-dc0.008-16x12drw-run1.cmd
I am wondering if it is possible to define two field separators "-" and "."
for these strings so that $7 is run1. (5 Replies)
How do I use multiple field separators in awk?
I know that if I use awk -F"", both a and b will be field separators. But what if I need two field separators that both are longer than one letter?
If I want the field separators to be "ab" and "cd", I will not be able to use awk -F"". The ... (2 Replies)
Can you please help me with this ....
Input File
share "FTPTransfer" "/v31_fs01/root/FTP-Transfer" umask=022 maxusr=4294967295 netbios=NJ09FIL530
share "Test" "/v31_fs01/root/Test" umask=022 maxusr=4294967295 netbios=NJ09FIL530
share "ENR California" "/v31_fs01/root/ENR California"... (14 Replies)
I have a large file that I need to print certain sections out of.
file.txt
/alpha/beta/delta/gamma/425/590/USC00015420.blah.lt.0.01.str:USC00015420Y2017M10BLALT.01 12 13 14 -9 1 -9 -9 -9 -9 -9 1 2 3 4 5 -9 -9
I need to print the "USC00015420" and... (5 Replies)
Discussion started by: ncwxpanther
5 Replies
LEARN ABOUT PHP
mysqli_fetch_lengths
MYSQLI_FETCH_LENGTHS(3) 1 MYSQLI_FETCH_LENGTHS(3)mysqli_result::$lengths - Returns the lengths of the columns of the current row in the result set
Object oriented style
SYNOPSIS
array$mysqli_result->lengths ()
DESCRIPTION
Procedural style
array mysqli_fetch_lengths (mysqli_result $result)
The mysqli_fetch_lengths(3) function returns an array containing the lengths of every column of the current row within the result set.
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
An array of integers representing the size of each column (not including any terminating null characters). FALSE if an error occurred.
mysqli_fetch_lengths(3) is valid only for the current row of the result set. It returns FALSE if you call it before calling
mysqli_fetch_row/array/object or after retrieving all rows in the result.
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();
}
$query = "SELECT * from Country ORDER BY Code LIMIT 1";
if ($result = $mysqli->query($query)) {
$row = $result->fetch_row();
/* display column lengths */
foreach ($result->lengths as $i => $val) {
printf("Field %2d has Length %2d
", $i+1, $val);
}
$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();
}
$query = "SELECT * from Country ORDER BY Code LIMIT 1";
if ($result = mysqli_query($link, $query)) {
$row = mysqli_fetch_row($result);
/* display column lengths */
foreach (mysqli_fetch_lengths($result) as $i => $val) {
printf("Field %2d has Length %2d
", $i+1, $val);
}
mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
Field 1 has Length 3
Field 2 has Length 5
Field 3 has Length 13
Field 4 has Length 9
Field 5 has Length 6
Field 6 has Length 1
Field 7 has Length 6
Field 8 has Length 4
Field 9 has Length 6
Field 10 has Length 6
Field 11 has Length 5
Field 12 has Length 44
Field 13 has Length 7
Field 14 has Length 3
Field 15 has Length 2
PHP Documentation Group MYSQLI_FETCH_LENGTHS(3)