perl -le'
@str = qw(
ab% %%abc %ab%c% %a%b%c% ab%c ab%%%%%c ab%%c
);
do {
$cnt = tr/%//; push @{$cnt{$cnt}}, $_;
$min = $cnt unless defined $min and $cnt > $min;
}
for @str;
print "Element(s) with the least number of % character => ",
join ", ", @{$cnt{$min}};
'
Output:
Code:
% perl -le'
@str = qw(
ab% %%abc %ab%c% %a%b%c% ab%c ab%%%%%c ab%%c
);
do {
$cnt = tr/%//; push @{$cnt{$cnt}}, $_;
$min = $cnt unless defined $min and $cnt > $min;
}
for @str;
print "Element(s) with the least number of % character => ", join ", ", @{$cnt{$min}};
'
Element(s) with the least number of % character => ab%, ab%c
These 2 Users Gave Thanks to radoulov For This Post:
I have a perl script with an array of clients.
@arr = ("The ABC Corp", "AA Corp.", "BB Corp");
If I run
@a = sort (@arr);
I will get
@a = ("AA Corp", "BB Corp", "The ABC Corp");
but I want
@a = ("AA Corp, "The ABC Corp", "BB Corp");
How do I sort array without changing... (2 Replies)
Dear all
There is a file which contains the following formatted files. I need to sort it by substring(strings after dot) in order to process efficiently.
Please give me any idea how to sort it.
Sample file:
1AAABBBCCC.20080401
1AAABBBCCC.20080402
2AAABBBCCC.20080401... (3 Replies)
Hi Folks,
The subject is my question:
Can we pass an array of strings from a Perl Program to a Shell Script?
Please provide some sample code.
Thanks
---------- Post updated at 11:52 PM ---------- Previous update was at 11:43 PM ----------
I got it.
Its here:... (0 Replies)
Hey
How do I sort an array numerically after the second column?
My values are integers like 1, 2, 3, 4... and they are not unique, so I can't just reverse my hash and sort by keys.
I wanna sort my file/array so that I get the lines with the highest value in the top - that is descending. ... (2 Replies)
Hi Everyone,
Any simple code can simplify the code below, please advice. Thanks
# cat 2.pl
#!/usr/bin/perl
use warnings;
use strict;
my @aaaaa = <DATA>;
my @uids;
foreach (@aaaaa) {
my @ccccc = split (",", $_);
push @uids, $ccccc;... (3 Replies)
People, I need your help with making a script which will
1. take as an input the number of lines, smth like this:
((RUBROBACTER_1_PE1288
(((SALINISPORA_1_PE1863
SALINISPORA_1_PE1828)100
((NOCARDIOIDES_2_PE2419
PROPIONIBACTERIUM_1_PE1395)96
((((((((CORYNEBACTERIUM_1_PE1119... (3 Replies)
Hello ,
I need some help to pull the data from different files, simultaneously for the string provided.
I want to search below strings.
PTN:3763427632478
IDB:3298734287438
PTN:8734983298738
From the files BELOW
CODE_FILE_LOG1
CODE_FILE_LOG2
CODE_FILE_LOG3
CODE_FILE_LOG4 (3 Replies)
Hi,
I tried to adapt bartus's solution to my problem, without success. I want to replace all the occurences of this:
with:
, where something can contain an arbitrary number of balanced parens and brakets.
Any ideas ?
Best, (1 Reply)
file:///C:/Users/TSHEPI%7E1.LEB/AppData/Local/Temp/moz-screenshot.pngATM@ubuntu:~$ cat numbers2 | sort -n | uniq -c
1
7 1
11 2
10 3
the 1st numbers are the counts from the command "uniq -c", which represent the number of occurrences of each in the file. The "sort -n"... (4 Replies)
Hi I have the server.log file as:
Server Stopped
ABC
DEF
GHI
JKL
Server Started
MNO
PQR
STU
Server Stopped
VWX
YZ
ABC
Server Started
Server Stopped
123
456
789 (9 Replies)
Discussion started by: ankur328
9 Replies
LEARN ABOUT DEBIAN
pcap_loop
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)