i can only find the first occurance of a pattern how do i set it to loop untill all occurances have changed.
#! /usr/bin/perl
use POSIX;
open (DFH_FILE, "./dfh") or die "Can not read file ($!)";
foreach (<DFH_FILE>) {
if ($_ !~ /^#|^$/) {
chomp;
... (1 Reply)
hi i am trying to get digits inside brackes from file , whose structure is defined below
CREATE TABLE TELM
(SOC_NO CHAR (3) NOT NULL,
TXN_AMOUNT NUMBER (17,3)
SIGN_ON_TIME CHAR (8)
TELLER_APP_LIMIT NUMBER (17,3)
FIL01 ... (2 Replies)
Hello
I got the below one from in one of this forums
For Ex: Loading File System Networking in nature
now i need to extract the patterns between the words File and Networking :
i.e. sample output: System
cmd used : cat <file> | sed 's/.*File //' | sed 's/Closing.*$//'
Actually... (0 Replies)
Hi,
I got doubt in Pattern matching, could you tell me how the following differs in action ??
if ( $line1==/$line2/ )
if ( $line1=~/$line2/ )
if ( $line1=~m/$line2/)
What is the significance of '~' in matching.
Thanks in advance
CoolBhai (5 Replies)
Hello experts,
I have a file containing the following text(shortened here).
File Begin
----------
< # Billboard.d3fc1302a677.imagePath=S:\\efcm_T4
< Billboard.d3fc1302a677.imagePath=S:\\efcm_T4
---
> # Billboard.d3fc1302a677.imagePath=S:\\efcm_Cassini
>... (2 Replies)
Hi experts,
I have many occurances of the following headers in a file. I need to grep for the word changed/inserted in the header, calculate the difference between the two numbers and list the count incrementally.
Headers in a file look like this:
-------------------
---------------------... (6 Replies)
I am doing a file patterhn matching for a text file in PERL
I am using this,,, but it says that no file is found
$filepattern = '\d{1,4}.*A0NW9693.NDM.HBIDT.*.AD34XADJ.txt';
Can anyone help me out with Perl Pattern Matching concepts and how to do pattern matching for this txt file:... (4 Replies)
I have a 2 files in .gz format and it consists of 5 million lines the format of the file would be
gzcat file1.gz | more
abcde
aerere
ffgh56
..
..
12345
gzcat file2.gz | more
abcde , 12345 , 67890,
ffgh56 , 45623 ,12334
whatever the string is in the file1 should be matched... (3 Replies)
My log file looks as given below, its actually a huge file around 1 GB and these are some of the line:
conn=5368758 op=10628050 msgId=64 - RESULT err=0 tag=101 nentries=1 etime=0
conn=7462122 op=-1 msgId=-1 - fd=247 slot=247 LDAPS connection from 10.13.18.12:37645 to 10.18.6.45
conn=7462122... (5 Replies)
I am using Perl version 5.8.4 and trying to understand the use of regular expression. Following is my code and output.
$string = "Perl is a\nScripting language";
($start) = ($string =~ /\A(.*?) /);
@lines = ($string =~ /^(.*?) /gm);
print "First Word (using \\A): $start\n","Line... (4 Replies)
Discussion started by: jnrohit2k
4 Replies
LEARN ABOUT DEBIAN
pydhcplib.ipv4
pydhcplib.ipv4(3) PYDHCPLIB pydhcplib.ipv4(3)NAME
pydhcplib.ipv4 - Type for IP addresses version 4
SYNOPSIS
from pydhcplib.type_ipv4 import ipv4
a = ipv4()
a = ipv4(string)
a = ipv4(strlist)
a = ipv4(int)
DESCRIPTION
The class pydhcplib.ipv4 is a type "IP address version 4". It's used for string processing like "192.168.0.4".
The class creation argument can be a string like "192.168.0.4".
The class creation argument can be a list of bytes like [192,168,0,4].
METHODS
The implemented methods in this class are mostly methods of comparison (= =, >, etc...)
else :
str() return data converted into a printable string.
list() return data converted into a list of bytes.
int() return data converted into an 4 bytes int.
EXAMPLES
Example program ipv4_example.py :
from pydhcplib.type_ipv4 import ipv4
address = ipv4()
address1 = ipv4("192.168.0.1")
address2 = ipv4("10.0.0.1")
address3 = ipv4([192,168,0,1])
print "a0 : ",address
print "a1 : ",address1
print "a2 : ",address2
print "a3 : ",address3
if address1 == address2 :
print "test 1 : ",address1, "==",address2
else :
print "test 1 : " ,address1, "!=",address2
if address1 == address3 :
print "test 2 : ", address1, "==",address3
else :
print "test 2 : ", address1, "!=",address3
SEE ALSO pydhcp(8), pydhcplib.hwmac(3), pydhcplib.ipv4(3), pydhcplib.strlist(3), pydhcplib.DhcpPacket(3), pydhcplib.DhcpBasicPacket(3), pydhc-
plib.DhcpNetwork(3), pydhcplib.DhcpClient(3), pydhcplib.DhcpRawClient(3), pydhcplib.DhcpDerver(3)BUGS
See http://pydhcplib.tuxfamily.org/ for more information.
AUTHOR
Mathieu Ignacio (mignacio[AT]april.org)
pydhcplib.ipv4(3)