perl pattern matching


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting perl pattern matching
# 1  
Old 09-28-2007
Question perl pattern matching

hi i am trying to get digits inside brackes from file , whose structure is defined below

Code:
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                     CHAR (11)    
CONSTRAINT TELMPK
PRIMARY KEY (SOC_NO,
             TELLER_NO),
CONSTRAINT TELMUK_02
UNIQUE      (SOC_NO,
             TELLER_NO,
             SUP_TELLER));

i want only digits inside bracket i am able to get digits from bracket (which is BOLD) if there is only one digit eg :
Code:
[(SOC_NO                 CHAR (3)     NOT NULL,]

with following code

Code:
 if (/^.*(CHAR|NUMBER)\s*.*$/) {
             $_ =~ s/ DEFAULT(.*)// ;
             print "$_\n" ;
         if (/^.*\((\d+)\).*$/) {
             print "one:$1\n" ;
          }elsif (/^.*\((\d\d),(\d)\).*$/) {
             print "two :$2\n" ;
          }

but i am not able to get digits if they are specified with comma in between like :
Code:
TXN_AMOUNT          NUMBER (17,3)

for above i want 17 in 1 varaible and 3 in other but i m not able to manage it i get only digit specified after "," 3 for above case.
# 2  
Old 09-28-2007
Hi zedex,

supponing that the file you are reading is called 'temp', you can use this code to get both numbers in brackets:


Code:
open(FILE, "< temp");                                                                                                                                           
while ( $r = <FILE>) {
        if ($r =~  /^.*\s+.*\s+\((\d+)\)/) {
                print "\$1= $1\n";
                }
        elsif ($r =~  /^.*\s+.*\s+\((\d+),(\d+)\)/) {
                print "\$1= $1\n";
                print "\$2= $2\n";
                }
        }

Sergio
# 3  
Old 09-30-2007
thanx it worked as i wanted
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl - Use of *? in Matching Pattern

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

2. Shell Programming and Scripting

Pattern matching in Perl

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

3. Shell Programming and Scripting

Need help with perl pattern matching

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

4. Shell Programming and Scripting

Pattern Matching in PERL

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

5. Shell Programming and Scripting

Perl Pattern matching...

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

6. Shell Programming and Scripting

Perl pattern matching!!

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

7. Shell Programming and Scripting

Perl Pattern Matching

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

8. Shell Programming and Scripting

Perl -Pattern Matching help..!

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

9. Shell Programming and Scripting

Perl Pattern Matching !!! Help

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

10. Shell Programming and Scripting

pattern matching + perl question

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)
Discussion started by: Optimus_P
1 Replies
Login or Register to Ask a Question