Hi,
I have a file like this.
please notice that ./usr/orders1/order_new_2627 appears more than once, thus needs to be merged.
I would like to merge the lines where the first column match
so the output should be like this:
Please help (2 Replies)
Dear Friends
myself Avinash working in bash shell
The problem goes like this
I have a file called work.txt
assume that
first colum=mac address
second colum= IP
third colum = port number
----------------------------------------
00:12:23:34 192.168.50.1 2
00:12:23:35 192.168.50.1 5... (2 Replies)
Greetings, I have been trying to merge the following lines:
Sat. May 9 8:00 PM
Sat. May 9 8:00 PM CW
Sat. May 9 8:00 PM CW Cursed
Sat. May 9 9:00 PM
Sat. May 9 9:00 PM CW
Sat. May 9 9:00 PM CW Sanctuary
Sat. May 16 8:00 PM
Sat. May 16 8:00 PM CW
Sat. May 16 8:00 PM CW Sanctuary
Sat. May... (2 Replies)
I have a file which contains data as below:
nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf
nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf
nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf
nbk1j7o pageName=/jsp/RMBS/RMBSHome.jsf
nbk1j7o pageName=/jsp/common/index.jsf
nbk1j7o pageName=/jsp/common/index.jsf
nbk1wqe... (6 Replies)
Hello folks
I have a question for you gurus of sed or grep (maybe awk, but I would prefer the first two)
I have a file (f1) that says:
(actually, these are not numbers but md5sum, but for simplicity, let's assume these numbers.)
1
2
3
4
5And I have a file (f2) that says
1|a
1|b
1|c
2|d... (3 Replies)
Hi,
Pretty new to scripting sed awk etc. I'm trying to speed up calculations of disk space allocation. I've extracted the data i want and cleaned it up but i cant figure out the final step. I need to discover a Maximum value of 1 field where the value of another field is the same using awk
so... (4 Replies)
consider i have two files
cat onlyviews1.sql
CREATE VIEW V11
AS
SELECT id,
name,
FROM
etc etc
WHERE etc etc;
CREATE VIEW V22
AS
SELECT id,
name,
FROM
etc etc
WHERE etc etc;
CREATE VIEW V33
AS (10 Replies)
I have 2 files, and I wish to count number of lines with this characteristic:
if any token at line x in file1, is similar to a token at line x in file2.
Here's an example:
file1:
ab, abc
ef
fg
file2:
ab
cd ef
gh
In this case I wish to get 3.
Note that token of file1 are... (3 Replies)
Hi,
I need to compare the /etc/passwd files from 2 servers, and extract the users that are similar in these two files. I sorted the 2 files based on the user IDs (UID) (3rd column). I first sorted the files using the username (1st column), however when I use comm to compare the files there is no... (1 Reply)
Discussion started by: anaigini45
1 Replies
LEARN ABOUT NETBSD
pcap_loop
PCAP_LOOP(3) Library Functions Manual PCAP_LOOP(3)NAME
pcap_loop, pcap_dispatch - process packets from a live capture or savefile
SYNOPSIS
#include <pcap/pcap.h>
typedef void (*pcap_handler)(u_char *user, const struct pcap_pkthdr *h,
const u_char *bytes);
int pcap_loop(pcap_t *p, int cnt,
pcap_handler callback, u_char *user);
int pcap_dispatch(pcap_t *p, int cnt,
pcap_handler callback, u_char *user);
DESCRIPTION
pcap_loop() processes packets from a live capture or ``savefile'' until cnt packets are processed, the end of the ``savefile'' is reached
when reading from a ``savefile'', pcap_breakloop() is called, or an error occurs. It does not return when live read timeouts occur. A
value of -1 or 0 for cnt is equivalent to infinity, so that packets are processed until another ending condition occurs.
pcap_dispatch() processes packets from a live capture or ``savefile'' until cnt packets are processed, the end of the current bufferful of
packets is reached when doing a live capture, the end of the ``savefile'' is reached when reading from a ``savefile'', pcap_breakloop() is
called, or an error occurs. Thus, when doing a live capture, cnt is the maximum number of packets to process before returning, but is not
a minimum number; when reading a live capture, only one bufferful of packets is read at a time, so fewer than cnt packets may be processed.
A value of -1 or 0 for cnt causes all the packets received in one buffer to be processed when reading a live capture, and causes all the
packets in the file to be processed when reading a ``savefile''.
(In older versions of libpcap, the behavior when cnt was 0 was undefined; different platforms and devices behaved differently, so code that
must work with older versions of libpcap should use -1, nor 0, as the value of cnt.)
callback specifies a pcap_handler routine to be called with three arguments: a u_char pointer which is passed in the user argument to
pcap_loop() or pcap_dispatch(), a const struct pcap_pkthdr pointer pointing to the packet time stamp and lengths, and a const u_char
pointer to the first caplen (as given in the struct pcap_pkthdr a pointer to which is passed to the callback routine) bytes of data from
the packet.
RETURN VALUE
pcap_loop() returns 0 if cnt is exhausted, -1 if an error occurs, or -2 if the loop terminated due to a call to pcap_breakloop() before any
packets were processed. It does not return when live read timeouts occur; instead, it attempts to read more packets.
pcap_dispatch() returns the number of packets processed on success; this can be 0 if no packets were read from a live capture (if, for
example, they were discarded because they didn't pass the packet filter, or if, on platforms that support a read timeout that starts before
any packets arrive, the timeout expires before any packets arrive, or if the file descriptor for the capture device is in non-blocking mode
and no packets were available to be read) or if no more packets are available in a ``savefile.'' It returns -1 if an error occurs or -2 if
the loop terminated due to a call to pcap_breakloop() before any packets were processed. If your application uses pcap_breakloop(), make
sure that you explicitly check for -1 and -2, rather than just checking for a return value < 0.
If -1 is returned, pcap_geterr() or pcap_perror() may be called with p as an argument to fetch or display the error text.
SEE ALSO pcap(3), pcap_geterr(3), pcap_breakloop(3)
24 December 2008 PCAP_LOOP(3)