I'm working on a project that basically unzips three zip files.
When these unzip they create about 70+ directories with subdirectories of year/month with about 3 to 9 pdf files in each directory.
Basically, I'm needing to figure out a way to zip these pdf files up.
for instance the script... (1 Reply)
i have a folder that contains 100's of files: abc, bca, def, ghi....
i want to rename abc with 1, bca with 2, def with 3, ghi with 4 and so on.
my way, i create a file.txt with contents:
1
2
3
4
i use while loop to rename my files. without using file.txt, i just want to rename abc with... (4 Replies)
Hi Guys,
I have 5000 files in a folder. all are .DAT files.
I want to rename them as .TXT files.
I tried the following command.
mv *.DAT *. TXT
But it is throwing an error. Can you please tell me what am i doing wrong.
Thanks & Regards,
Magesh. (11 Replies)
Hello,
I am new to shell scripting and stuck on renaming files in a folder. The files have the format
chp01_00001.wav
chp01_00002.wav
....
chp02_00001.wav
chp02_00002.wav
....
but I want them to have the following names:
chp_bloomy_00001.wav
chp_bloomy_00002.wav
chp_bloomy_00003.wav... (8 Replies)
Hi all.
I am very new to linux scripting and i have a task i can only solve with a script.
I need to sort files base on the date string in their filenames and create a folder using the same date string then move the files to their respective folders.
Scenario:
Folder Path:... (1 Reply)
Dear friends,
I have created a script to rename all files in a directory by appending the file name with username (who created the file), the date it was created. For example, "apple.doc" should be renamed to "johnFeb23apple.doc" where "john" is the owner and "Feb23" is file created date. It... (4 Replies)
I just can't figure it out , so please just give me a pice of advise how to:
The existing Linux program foo2bar takes as its only argument the name of a single foo file and converts it to an appropriately-named bar file. Provide a script that when executed will run foo2bar against all foo... (4 Replies)
:wall::wall::wall:
Hi I have horrible script below, need help in renaming ls -l output into new filename format:
Desired output:
cp -pv original_path/.* newDirectory/owner_of_file.%dd%mm%y.file_extension.first_8_characters_of_original_filename
localuser@localuser:~ vi... (3 Replies)
Hello,
I heva a problem creating a script that read specifc value from all the files of an entire folder
I have a number of email files into a directory and i need to extrect from each file 2 specific values.
After that i have to put them into a new file that looks like that:
To: value1
... (1 Reply)
Im looking for 2 Files -> *.WAV and *.wav with
find . -name 'unavail.wav' -o -name 'unavail.WAV' I need to list the Folders that contains these 2 Files?
Thx in advance (13 Replies)
Discussion started by: valdez
13 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)