01-30-2016
You should confirm that the source of the data with leading zeros is actually decimal and not octal.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi
Can anyone tell me how to pad zeroes on the left side to a numeric string in unix shell scripting
Your answer is very much appreciated
Thanks
Vijay (2 Replies)
Discussion started by: vijaygopalsk
2 Replies
2. Programming
Hi,
Can someone explain what is byte padding?
For ex:
struct emp{
char s;
int b;
char s1;
int b1;
long b3;
char s3;
}
What will be the size of this structure?
Thanks (6 Replies)
Discussion started by: naan
6 Replies
3. UNIX for Dummies Questions & Answers
Hello,
Here is my problem. there are two files.
first.txt <<< contains email address
======
abc@mail.com
abd@mail.com
abe@mail.com
second.txt <<< contains webpage links
========
http//www.test.com/abc/index.html
http://www.test.com/abd/index.html
http://www.test.com/abe/index.html... (2 Replies)
Discussion started by: paulds
2 Replies
4. Shell Programming and Scripting
Hi Friends,
I would like to left pad with "0's" on first column say (width six)
I have a large file with the format:
FILE:
1: ALFRED 84378 NY
8385: JAMES 88385 FL
323: SMITH 00850 TX
My output needs to be like:
000001: ALFRED 84378 NY
008385: JAMES 88385 FL
000323: SMITH... (10 Replies)
Discussion started by: sbasetty
10 Replies
5. Shell Programming and Scripting
Trying to do a ksh script that needs to list all ip address between ip address a and b ..
ie.
Ip address A=192.168.1.200
Ip address B=192.168.2.15
So the subnet changes from 1 to 2 but I want to list all possible ip addresses between the 2..
Which would be:
192.168.1.200... (4 Replies)
Discussion started by: frustrated1
4 Replies
6. Shell Programming and Scripting
I have two files:
file1:
41.138.128.0 41.138.159.255 location
41.138.160.0 41.138.191.255 location
41.138.192.0 41.138.207.255 location
41.138.208.0 41.138.223.255 location
41.138.224.0 41.138.239.255 location
41.138.240.0 41.138.255.255 location
41.138.32.0 ... (7 Replies)
Discussion started by: kevintse
7 Replies
7. UNIX for Dummies Questions & Answers
Hello,
I got a list of IP address from which I would like to remove the duplicates. I cat the file and pipe it to uniq -u or uniq -c, I got the same output with all the duplicates. Can anybody please tell me how I can remove the duplicates IPs from this file? This is what I used.
cat filename |... (3 Replies)
Discussion started by: Pouchie1
3 Replies
8. Cybersecurity
Hi all,
I want to make this nw diagram:
Small NW ---(eth1)-- Linux iptables --(eth0)---LAN NW
And with these requirements:
1. Allow only 1 Mac address aa-aa-aa-aa-aa-aa from Small NW to LAN NW
2. Allow list of Mac addresses from LAN NW access to Small NW
What will I... (2 Replies)
Discussion started by: blackthu80
2 Replies
9. Shell Programming and Scripting
I have been struggling with a script to automate some security related activities. I have it pretty much working, all except the search. I have an input file formatted as such:
216.234.246.158 216.234.246.158 ``
24.249.221.22 24.249.221.200 ``
24.249.226.0 ... (4 Replies)
Discussion started by: tsunami4u
4 Replies
10. Shell Programming and Scripting
Hi
I have a file containing server names and i can ssh to all these servers without password.
Could any body suggest me how to list out IP address of all the servers?
Now i am manually doing this, like ssh to each server and run "ifcong -a" command and copy the ipaddress to a excel sheet.... (5 Replies)
Discussion started by: kumar85shiv
5 Replies
LEARN ABOUT DEBIAN
pcap_findalldevs
PCAP_FINDALLDEVS(3PCAP) PCAP_FINDALLDEVS(3PCAP)
NAME
pcap_findalldevs, pcap_freealldevs - get a list of capture devices, and free that list
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
int pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf);
void pcap_freealldevs(pcap_if_t *alldevs);
DESCRIPTION
pcap_findalldevs() constructs a list of network devices that can be opened with pcap_create() and pcap_activate() or with pcap_open_live().
(Note that there may be network devices that cannot be opened by the process calling pcap_findalldevs(), because, for example, that process
does not have sufficient privileges to open them for capturing; if so, those devices will not appear on the list.) If pcap_findalldevs()
succeeds, the pointer pointed to by alldevsp is set to point to the first element of the list, or to NULL if no devices were found (this is
considered success). Each element of the list is of type pcap_if_t, and has the following members:
next if not NULL, a pointer to the next element in the list; NULL for the last element of the list
name a pointer to a string giving a name for the device to pass to pcap_open_live()
description
if not NULL, a pointer to a string giving a human-readable description of the device
addresses
a pointer to the first element of a list of network addresses for the device, or NULL if the device has no addresses
flags device flags:
PCAP_IF_LOOPBACK
set if the device is a loopback interface
Each element of the list of addresses is of type pcap_addr_t, and has the following members:
next if not NULL, a pointer to the next element in the list; NULL for the last element of the list
addr a pointer to a struct sockaddr containing an address
netmask
if not NULL, a pointer to a struct sockaddr that contains the netmask corresponding to the address pointed to by addr
broadaddr
if not NULL, a pointer to a struct sockaddr that contains the broadcast address corresponding to the address pointed to by
addr; may be null if the device doesn't support broadcasts
dstaddr
if not NULL, a pointer to a struct sockaddr that contains the destination address corresponding to the address pointed to by
addr; may be null if the device isn't a point-to-point interface
Note that the addresses in the list of addresses might be IPv4 addresses, IPv6 addresses, or some other type of addresses, so you must
check the sa_family member of the struct sockaddr before interpreting the contents of the address; do not assume that the addresses are all
IPv4 addresses, or even all IPv4 or IPv6 addresses. IPv4 addresses have the value AF_INET, IPv6 addresses have the value AF_INET6 (which
older operating systems that don't support IPv6 might not define), and other addresses have other values. Whether other addresses are
returned, and what types they might have is platform-dependent. For IPv4 addresses, the struct sockaddr pointer can be interpreted as if
it pointed to a struct sockaddr_in; for IPv6 addresses, it can be interpreted as if it pointed to a struct sockaddr_in6.
The list of devices must be freed with pcap_freealldevs(), whch frees the list pointed to by alldevs.
RETURN VALUE
pcap_findalldevs() returns 0 on success and -1 on failure; as indicated, finding no devices is considered success, rather than failure, so
0 will be returned in that case. If -1 is returned, errbuf is filled in with an appropriate error message. errbuf is assumed to be able
to hold at least PCAP_ERRBUF_SIZE chars.
SEE ALSO
pcap(3PCAP), pcap_create(3PCAP), pcap_activate(3PCAP), pcap_open_live(3PCAP)
22 August 2010 PCAP_FINDALLDEVS(3PCAP)