hi all,
In an mp3 file , data is arranged in sequence of header and data ,how to retrieve data between two headers. Is the data between two headers fixed? because as per theory it says 1152 samples will be there , but dont knw how many bits one sample correspond to?
it would help if any c... (2 Replies)
How to write a shell script to retrieve datas from database after that this database are redirect to a excell sheet and then i got a mail that gives details about the database with the column name and data..
I m using oracle 9i...
Thanks,
Anup Das (2 Replies)
I have a txt file with below data (textfile1.txt)
select col1, col2 from Schema_Name.Table_Name1
select * from Schema_Name.Table_Name2
select col1, col2, col3 from Schema_Name.Table_Name3
select col1 from Schema_Name.Table_Name4
My output should look like
Table_Name1
Table_Name2... (5 Replies)
Hi All,
It takes around one hour to retrieve 3 lakhs data from DB. I feel this can be still more reduced, please help me in improvising the below code, to get it retrieve faster, atleast 30 to 45 minutes.
sqlplus -s ${OCAU_DB_UNAME}/${OCAU_DB_UPSWD}@${OCAU_DB_NAME} > /apps/data/filedata.txt... (4 Replies)
I am a newbie to Unix and slowly learning it. I have a large data set with 8 different columns. I want to compare two columns and retrieve data if the two columns have similar number.
I have attached the example. There are two columns (S-Contig and N-Contig). I want to retrieve the data from... (7 Replies)
Hello Experts,
I have come back to this forum after a while now, since require a better way to get my result.. My query is as below..
I have 3 files -- 1 Input file, 2 Data files .. Based on the input file, data has to be retreived matching from two files which has one common key..
For EX:... (4 Replies)
Hello
Please I ask if it is possible to recover data that is stored on a remote machine that I access via ssh on a usb ? if so, how?
Thank you so much (5 Replies)
I would like to recover the data from 3 text tags.
These three markers are located between the tags specific location <tag1> and </tag1> knowing that they are in many places.
In File.txt:
<tag2>txt2</tag2>
<tag3>txt3</tag3>
<tag4>txt4</tag4>
....
<tag1>
<tag2>txt2</tag2>... (3 Replies)
Hi all,
I have one file with IDs
Q8NDM7
P0C1S8
Q8TF30
Q9BRP8
O00258
Q6AWC2
Q9ULE0
Q702N8
A4UGR9
Q13426
Q6P2D8
Q9ULM3
A8MXQ7
I want to compare ID file with another file which has complete information about these IDs and also about other IDs which are not in the above ID file. As... (10 Replies)
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)