Is there any way using the sort command to get something like a GROUP BY clause?
I'm trying to sort through race_event records and group them by those individuals that raced together in the same race on the same date at the same track, but i run into a problem when there were days when the track... (6 Replies)
Hi,
Need awk help to group and print lines to format the output as shown below
INPUT FORMAT
set echo on
set heading on
set spool on
/* SCHEMA1 */ CREATE TABLE T1;
/* SCHEMA1 */ CREATE TABLE T2;
/* SCHEMA1 */ CREATE TABLE T3;
/* SCHEMA1 */ CREATE TABLE T4;
/* SCHEMA1 */ CREATE TABLE T5;... (5 Replies)
I wrote script in bash which generates this report:
User1,admin,rep,User2,shell,path1,x1,r1
User2,admin,rep,User7,shell,path1,x1,r1
User3,admin,rep,User4,shell,path1,x1,r1
User4,admin,rep,User3,shell,path1,x1,r1
User5,admin,rep,User1,shell,path1,x1,r1
User6,admin,rep,User5,shell,path1,x1,r1... (6 Replies)
Hi @ all
I'm trying to achive to this problem,
I've a 2-column composed file as the following:
192.168.1.2 2
192.168.1.3 12
192.168.1.2 4
192.168.1.4 3
cpc1-swan1-2-3-cust123.swan.cable.ntl.com 4
192.168.1.3 5
192.168.1.2 10
192.168.1.4 8... (8 Replies)
Hi All
I do have a file like this with 6 columns. Groups of data merge together and the group number is indicated above each group.
1
1 12 26 289 3.2e-027 GCGTATGGCGGC
2 12 26 215 6.7e+006 TTCCACCTTTTG
3 9 26 175 ... (1 Reply)
Hello,
I have a file and i want to sort by third column and extract the three top lines of each group, it is determined by the second column (144, 89, 55, etc).
Could you please help me with the appropiate awk shell script
XLY-XLP 144 0.592772 XLY-XLE 144 0.798121 ... (3 Replies)
hi,
I want to create a volume group of 200 GB and then create different file systems on that.
please help me out. Its becomes confusing when the PP calculating PP.
I don't understand this concept. (2 Replies)
I'm trying to return only one row with the highest value for PCT_MAX_USED. Any suggestions?
When I add this code, I get the ORA-00937 error.
trunc(max(decode( kbytes_max, 0, 0, (kbytes_alloc/kbytes_max)*100))) pct_max_used
This is the original and returns all rows.
select (select... (3 Replies)
Discussion started by: progkcp
3 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)