Hello.
I just installed a SCO Openserver 6 box and it's suckin' mud.
sar -v (see below) shows something that has me quite concerned... after time, it shows that the number of inodes being used as a negative value. When this happens, the server runs extremely slow until I reboot. The server... (0 Replies)
I am looking for advice on a router. I am new to Linux and am trying to use Limewire and Ktorent and can make no connection. Limewire indicates I have a firewall. I have a Linksys router WRK54G and my guess is that is the problem. I have spent hours upon hours trying to get it to work using info... (0 Replies)
Hello,
I have a list like this :
1
2
-4
0
-3
-7
5
6 etc.
Is there a way to remove all the positive values and print only the negative values, without using grep, sed or awk?
Thanks,
Prasanna (4 Replies)
Hi, i need help on replacing negative values in a column with 0. any quick fix on this? thanks much. for instance,
input:
1
2.3
-0.4
-25
12
13
45
-12
desired output
1
2.3
0
0
12
13
45 (4 Replies)
Hi,
I am trying to add a static route in one of 3 server (S3) so that I can access the main application server (S1). But problem is, the server (S3) where I am trying to add static route is connected with another server (S2) which is in same private network of application server (S1).
I have... (9 Replies)
Hi All,
i have 20 Obligors when ever i dont find all of them on particular row/line from each in put i need to print it in different file.
using below command but it is not working please help at earliest.
Steps:
set -A FILENAME $( cat... (10 Replies)
Can anyone please assist me?
Please find the attached input and output file for ur reference.
a)Incase if i get negative value (ex:-000100) in the 11th column then i have to convert the value to 0000000(7 zeros-length is 7) and then
print the entire record.
b)Incase if there is no... (2 Replies)
Hi Gurus,
I have requirement need to sum the value, the logic is if the value is negative then time -1, I tried below two ways. one is failed, another one doesn't work.
awk -F"," '{if($8< 0 $8*-1 else $8) sum+=$8}{print sum, $8} END{printf("%.2f\n",sum)}'
awk -F","... (4 Replies)
Discussion started by: ken6503
4 Replies
LEARN ABOUT LINUX
gen_udp
gen_udp(3erl) Erlang Module Definition gen_udp(3erl)NAME
gen_udp - Interface to UDP sockets
DESCRIPTION
The gen_udp module provides functions for communicating with sockets using the UDP protocol.
DATA TYPES
ip_address()
see inet(3erl)
posix()
see inet(3erl)
socket()
as returned by open/1,2
EXPORTS
open(Port) -> {ok, Socket} | {error, Reason}
open(Port, Options) -> {ok, Socket} | {error, Reason}
Types Port = 0..65535
Options = [Opt]
Opt -- see below
Socket = socket()
Reason = posix()
Associates a UDP port number ( Port ) with the calling process.
The available options are:
list :
Received Packet is delivered as a list.
binary :
Received Packet is delivered as a binary.
{ip, ip_address()} :
If the host has several network interfaces, this option specifies which one to use.
{fd, int()} :
If a socket has somehow been opened without using gen_udp , use this option to pass the file descriptor for it.
inet6 :
Set up the socket for IPv6.
inet :
Set up the socket for IPv4.
Opt :
See inet:setopts/2 .
The returned socket Socket is used to send packets from this port with send/4 . When UDP packets arrive at the opened port, they are
delivered as messages:
{udp, Socket, IP, InPortNo, Packet}
Note that arriving UDP packets that are longer than the receive buffer option specifies, might be truncated without warning.
IP and InPortNo define the address from which Packet came. Packet is a list of bytes if the option list was specified. Packet is a
binary if the option binary was specified.
Default value for the receive buffer option is {recbuf, 8192} .
If Port == 0 , the underlying OS assigns a free UDP port, use inet:port/1 to retrieve it.
send(Socket, Address, Port, Packet) -> ok | {error, Reason}
Types Socket = socket()
Address = string() | atom() | ip_address()
Port = 0..65535
Packet = [char()] | binary()
Reason = not_owner | posix()
Sends a packet to the specified address and port. The Address argument can be either a hostname, or an IP address.
recv(Socket, Length) -> {ok, {Address, Port, Packet}} | {error, Reason}
recv(Socket, Length, Timeout) -> {ok, {Address, Port, Packet}} | {error, Reason}
Types Socket = socket()
Length = int()
Address = ip_address()
Port = 0..65535
Packet = [char()] | binary()
Timeout = int() | infinity
Reason = not_owner | posix()
This function receives a packet from a socket in passive mode.
The optional Timeout parameter specifies a timeout in milliseconds. The default value is infinity .
controlling_process(Socket, Pid) -> ok
Types Socket = socket()
Pid = pid()
Assigns a new controlling process Pid to Socket . The controlling process is the process which receives messages from the socket.
close(Socket) -> ok | {error, Reason}
Types Socket = socket()
Reason = not_owner | posix()
Closes a UDP socket.
Ericsson AB kernel 2.14.3 gen_udp(3erl)