Using echo with arbitrary text can produce unexpected results. It's best to use printf '%s\n' "$v1" .
Thanks for the reminder. I usually use my function: print like echo, because the name is shrtr, and uses printf -- but sometimes I forget ... cheers, drl
Hi,
There seems to some hack attempts in my site. I have attached the index page of my site and I need to remove the below lines from the index page. The below lines are at the center of the file.
-->
</style>
<script>E V A L( unescape(... (5 Replies)
All,
I have a text file with several entries like below:
personname
personname.domain.com
I know there is a way to use vi to remove only the personname.domain.com line. Can someone help? I believe that it involves /s/g/ something...I just can't remember the exact syntax.
Thanks (2 Replies)
Hi gurus,
i'm trying to remove a number of lines from a large file using the following command:
sed '1,5000d' oldfile > newfile
Somehow the lines in the old file are not deleted...
Am I doing this wrongly? Any suggestions? :confused:
Thanks! :)
wee (10 Replies)
A small question
I have a test.txt file
I have contents as:
a:google
b:yahoo
:
c:facebook
:
d:hotmail
How do I remove the line with :
my output should be
a:google
b:yahoo
c:facebook
d:hotmail (5 Replies)
Hi,
I'm not a expert in shell programming, so i've come here to take help from u gurus.
I'm trying to tailor a csv file that i got to make it work for the LOAD FROM command.
I've a datatable csv of the below format -
--in file format
xx,xx,xx ,xx , , , , ,,xx,
xxxx,, ,, xxx,... (11 Replies)
Hey Gang-
I have a list of servers. I want to exclude servers that begin with and end with certain characters. Is there an easy command to do this?
Example
wvm1234dev
wvm1234pro
uvm1122dev
uvm1122bku
uvm1344dev
I want to exclude any lines that start with "wvm" OR "uvm" AND end... (7 Replies)
I have two files, a keepout.txt and a database.csv. They're unsorted, but could be sorted.
keepout:
user1
buser3
anuser19
notheruser27
database:
user1,2343,"information about",field,blah,34
user2,4231,"mo info",etc,stuff,43
notheruser27,4344,"hiya",thing,more thing,423... (4 Replies)
Hello everyone,
Although it seems easy, I've been stuck with this problem for a moment now and I can't figure out a way to get it done.
My problem is the following:
I have a file where each line is a sequence of IP addresses, example :
10.0.0.1 10.0.0.2
10.0.0.5 10.0.0.1 10.0.0.2... (5 Replies)
I have been searching and trying to come up with an awk that will perform the following on a
converted text file (original is a pdf).
1. Since the first two lines are (begin with) text they are removed
2. if $1 is a number then all text is merged (combined) into one line until the next... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT PHP
ip2long
IP2LONG(3) 1 IP2LONG(3)ip2long - Converts a string containing an (IPv4) Internet Protocol dotted address into a proper addressSYNOPSIS
int ip2long (string $ip_address)
DESCRIPTION
The function ip2long(3) generates an IPv4 Internet network address from its Internet standard format (dotted string) representation.
ip2long(3) will also work with non-complete IP addresses. Read http://publibn.boul-
der.ibm.com/doc_link/en_US/a_doc_lib/libs/commtrf2/inet_addr.htm for more info.
PARAMETERS
o $ip_address
- A standard format address.
RETURN VALUES
Returns the IPv4 address or FALSE if $ip_address is invalid.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
|5.2.10 | |
| | |
| | Prior to this version, ip2long(3) would some- |
| | times return a valid number even if passed an |
| | value which was not an (IPv4) Internet Protocol |
| | dotted address. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
ip2long(3) Example
<?php
$ip = gethostbyname('www.example.com');
$out = "The following URLs are equivalent:<br />
";
$out .= 'http://www.example.com/, http://' . $ip . '/, and http://' . sprintf("%u", ip2long($ip)) . "/<br />
";
echo $out;
?>
Example #2
Displaying an IP address
This second example shows how to print a converted address with the printf(3) function in both PHP 4 and PHP 5:
<?php
$ip = gethostbyname('www.example.com');
$long = ip2long($ip);
if ($long == -1 || $long === FALSE) {
echo 'Invalid IP, please try again';
} else {
echo $ip . "
"; // 192.0.34.166
echo $long . "
"; // -1073732954
printf("%u
", ip2long($ip)); // 3221234342
}
?>
NOTES
Note
Because PHP's integer type is signed, and many IP addresses will result in negative integers on 32-bit architectures, you need to
use the "%u" formatter of sprintf(3) or printf(3) to get the string representation of the unsigned IP address.
Note
ip2long(3) will return FALSE for the IP 255.255.255.255 in PHP 5 <= 5.0.2. It was fixed in PHP 5.0.3 where it returns -1 (same as
PHP 4).
SEE ALSO long2ip(3), sprintf(3).
PHP Documentation Group IP2LONG(3)