Unless I misunderstand, you want the last entry for each distinct ip, and since it is a log file it is already in date order with the last entry for an ip=last time it appears. Correct? try:
Code:
awk '{arr[$1]=$0 }
END{for (i in arr )
print arr[i] } ' myweblog > somefile
For some reason 8.1 Mandrake Linux seems much slower than Windows 2000 with my cable modem. DSL reports test says they conferable speed with Windows2 though.
This is consistant slow with both of my boxes, at the same time. Linux used to be faster, but not with Mandrake. Any way to fix this? (17 Replies)
Hi ,
I need to copy every day about 35GB of files from one file system to another.
Im using the cp command and its toke me about 25 min.
I also tried to use dd command but its toke much more.
Is there better option ?
Regards. (6 Replies)
Hi I have to grep for 2000 strings in a file one after the other.Say the file name is Snxx.out which has these strings.
I have to search for all the strings in the file Snxx.out one after the other.
What is the fastest way to do it ??
Note:The current grep process is taking lot of time per... (7 Replies)
I have read anecdotes about people installing RAID0 (RAID - Wikipedia, the free encyclopedia) on some of their machines because it gives a performance boost. Because bandwidth on the motherboard is limited, can someone explain exactly why it should be faster? (7 Replies)
Hi all,
In bash scripting, I use to read files:
cat $file | while read line; do
...
doneHowever, it's a very slow way to read file line by line.
E.g. In a file that has 3 columns, and less than 400 rows, like this:
I run next script:
cat $line | while read line; do ## Reads each... (10 Replies)
I have the following code running against a file. The file can have upwards of 10000 lines.
problem is, the for loop takes a while to go through all those lines. is there a faster way to go about it?
for line in `grep -P "${MONTH} ${DAY}," file | ${AWK} -F" " '{print $4}' | awk -F":"... (2 Replies)
i'm trying to decide if to move operations from one of these hosts to the other. but i cant decide which one of them is the most powerful.
each host has 8 cpus.
HOSTA
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU ... (6 Replies)
Hello,
I am under Ubuntu 18.04 Bionic.
I have one shell script run.sh (which is out of my topic) to run files under multiple directories and one file to control all processes running under those directories (control.sh).
I set a cronjob task to check each of them with two minutes of intervals.... (3 Replies)
Discussion started by: baris35
3 Replies
LEARN ABOUT PHP
datefmt_localtime
DATEFMT_LOCALTIME(3) 1 DATEFMT_LOCALTIME(3)IntlDateFormatter::localtime - Parse string to a field-based time value
Object oriented style
SYNOPSIS
public array IntlDateFormatter::localtime (string $value, [int &$position])
DESCRIPTION
Procedural style
array datefmt_localtime (IntlDateFormatter $fmt, string $value, [int &$position])
Converts string $value to a field-based time value ( an array of various fields), starting at $parse_pos and consuming as much of the
input value as possible.
PARAMETERS
o $fmt
- The formatter resource
o $value
- string to convert to a time
o $position
- Position at which to start the parsing in $value (zero-based). If no error occurs before $value is consumed, $parse_pos will
contain -1 otherwise it will contain the position at which parsing ended . If $parse_pos > strlen($value), the parse fails immedi-
ately.
RETURN VALUES
Localtime compatible array of integers : contains 24 hour clock value in tm_hour field
EXAMPLES
Example #1
datefmt_localtime(3) example
<?php
$fmt = datefmt_create(
'en_US',
IntlDateFormatter::FULL,
IntlDateFormatter::FULL,
'America/Los_Angeles',
IntlDateFormatter::GREGORIAN
);
$arr = datefmt_localtime($fmt, 'Wednesday, December 31, 1969 4:00:00 PM PT', 0);
echo 'First parsed output is ';
if ($arr) {
foreach ($arr as $key => $value) {
echo "$key : $value , ";
}
}
?>
Example #2
OO example
<?php
$fmt = new IntlDateFormatter(
'en_US',
IntlDateFormatter::FULL,
IntlDateFormatter::FULL,
'America/Los_Angeles',
IntlDateFormatter::GREGORIAN
);
$arr = $fmt->localtime('Wednesday, December 31, 1969 4:00:00 PM PT', 0);
echo 'First parsed output is ';
if ($arr) {
foreach ($arr as $key => $value) {
echo "$key : $value , ";
}
}
?>
The above example will output:
First parsed output is tm_sec : 0 , tm_min : 0 , tm_hour : 16 , tm_year : 1969 ,
tm_mday : 31 , tm_wday : 4 , tm_yday : 365 , tm_mon : 11 , tm_isdst : 0 ,
SEE ALSO datefmt_create(3), datefmt_format(3), datefmt_parse(3), datefmt_get_error_code(3), datefmt_get_error_message(3).
PHP Documentation Group DATEFMT_LOCALTIME(3)