Hi
I am writing a script file which sends the log files along with their size in a folder named log to a file called temp.log using the following cmd:
ls -st 190_GSTV_HUX_003QISCGSK026** >> /home/user/temp.log
the temp.log looks like this:
16 190_GSTV_HUX_003QISCGSK026_message070321.log
... (11 Replies)
Advance Thanks.
(1) I would like to know any unix/Linux command to check EOF char in a file.
(2) Or Any way I can check a file has been reached completely at machine B from machine A. Note that machine A ftp/scp the file to machine B at unknown time. (5 Replies)
Hi,
Please see the below information.
1. Read files one by one and run the script.
2. Check if the filename is CHARTER OR NUMBER
3. Run the case statement.
I have files in the folder. i will get 300 files in a single day.
Abc_111111111111.csv
101010_kkk_bbbb.csv... (6 Replies)
Hi Gurus,
I am working with a korn shell script to simplify some operations of calculation number of lines inside compressed file.
The called function (inside a cycle) is the following:
#########################################
# F.ne: CheckCount
#########################################... (3 Replies)
Hi All,
I need a shell script which could insert a sequence number column inside a dat file(pipe delimited).
I have the dat file similar to the one as shown below..
|A|B|C||D|E
|F|G|H||I|J
|K|L|M||N|O
|P|Q|R||S|T
As shown above, the column 4 is currently blank and i need to insert sequence... (5 Replies)
Dear all
I need to unzip a file then further it has many folders to perform tak inside each folder.
What Task I need to perform I'm able to do it but once I unzip a folder then I'm not able to do cd folder/ into it. I have written following code for it
for i in $( ls | grep Run_20111016 )
do... (2 Replies)
This is what I have so far
grep -lir "some text" *
I need to check all files on the system for this text, if the text is found I need to change the file permissions so only ROOT has read and write access.
How can this be done? (3 Replies)
Hi,
I wanna find the biggest number inside of a file
this is kind of example of file:
9
11
55
then i just wanna print out the biggest number
i had try sed filenale | sort -k1,1n | paste -s -d',' -
but i had no success ... (7 Replies)
Hi Gurus,
I need check existing number of file based on the list in file list.
for example:
in my file list. I have below:
abc, file1.txt
abc, file2.txt
abc, file3.txt
abc, file4.txt
cde, filea1.txt
cde, filea2.txt
cde, filea3.txt
...
in my current file direcotry, I have file:... (0 Replies)
Hi all,
Please somebody help me with this:
I want to check if the files listed in a text file, are found under a directory or not.
For example: the file is list_of_files.txt, which contains inside this rows:
# cat list_of_files
logs
errors
paths
debug
#
I want to check if these... (3 Replies)
Discussion started by: arrals_vl
3 Replies
LEARN ABOUT DEBIAN
pcap_dispatch
PCAP_LOOP(3PCAP)PCAP_LOOP(3PCAP)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. The struct pcap_pkthdr and the packet data are not to be freed by the callback routine, and are not guaranteed to be valid
after the callback routine returns; if the code needs them to be valid after the callback, it must make a copy of them.
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(3PCAP), pcap_geterr(3PCAP), pcap_breakloop(3PCAP)
24 December 2008 PCAP_LOOP(3PCAP)