05-20-2011
Hi -
Its working fine.
One small clarification in the code.
Forgot to mention earlier.. My string can have spaces in between.. If I give a space in regexp.. its working
my @regexen=(qr'(^[0-9 a-zA-Z]+$)',qr'(^[ 0-9]+$)',qr'(^[MF]$)');
What does $1 represents inside first "if" condition? Does it means first left paranthesis and $2 means second left paranthesis.
If my string is something like "Ravi Go" .. then $1=Ravi and $2=Go .. right? Correct me if my understanding is not correct. If its like that, then $1 will get only first substring. Here in the code it s working fine. But just want to know how it is working.
Also could you tell me if I want to skip matching first column and check for other two column attribute values .. is this correct?
code:
my @regexen=(qr'(^.*$)',qr'(^[0-9]+$)',qr'(^[MF]$)');
Last edited by pvksandeep; 05-20-2011 at 04:32 AM..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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)
Discussion started by: zedex
2 Replies
2. Shell Programming and Scripting
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)
Discussion started by: maxmave
0 Replies
3. Shell Programming and Scripting
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)
Discussion started by: coolbhai
5 Replies
4. Shell Programming and Scripting
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)
Discussion started by: nmattam
2 Replies
5. Shell Programming and Scripting
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)
Discussion started by: nmattam
6 Replies
6. Shell Programming and Scripting
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)
Discussion started by: msrahman
4 Replies
7. Shell Programming and Scripting
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)
Discussion started by: aravindj80
3 Replies
8. Shell Programming and Scripting
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)
Discussion started by: sags007_99
5 Replies
9. Shell Programming and Scripting
Hi,
I have a list of IP, eg :
192.168.0.15
192.168.0.24
192.168.2.110
192.168.2.200
And I would like the shortest pattern who match with '192.168.0' and '192.168.2' (without the last dot and number). (7 Replies)
Discussion started by: X-Or
7 Replies
10. Shell Programming and Scripting
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
CD(1) BSD General Commands Manual CD(1)
NAME
cd -- change working directory
SYNOPSIS
cd directory
DESCRIPTION
Directory is an absolute or relative pathname which becomes the new working directory. The interpretation of a relative pathname by cd
depends on the CDPATH environment variable (see below).
ENVIRONMENT
The following environment variables affect the execution of cd:
CDPATH If the directory operand does not begin with a slash (/) character, and the first component is not dot (.) or dot-dot (..), cd
searches for the directory relative to each directory named in the CDPATH variable, in the order listed. The new working directory
is set to the first matching directory found. An empty string in place of a directory pathname represents the current directory. If
the new working directory was derived from CDPATH, it will be printed to the standard output.
HOME If cd is invoked without arguments and the HOME environment variable exists and contains a directory name, that directory becomes the
new working directory.
See csh(1) for more information on environment variables.
The cd utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
csh(1), pwd(1), sh(1), chdir(2)
STANDARDS
The cd command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD
June 5, 1993 BSD