Visit The New, Modern Unix Linux Community


I need to find in a file a list of number where last two digit end in a range


 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers I need to find in a file a list of number where last two digit end in a range
# 8  
Hi.

All in a single perl code: extraction of rightmost 2 digits, omit any containing lines greater than 33, numerically sort left-over lines based on right-most 2 characters:
Code:
#!/usr/bin/env perl

# @(#) p1       Demonstrate filtering, collecting, ordering.

use strict;
use warnings;

my (@a);
while (<>) {    # Eliminate numbers ending in > 33, collect rest
  chomp;
  next if substr( $_, -2, 2 ) > 33;
  push( @a, $_ );
}

# Sort numerically by right-most 2 digits
print join( "\n", sort { substr( $a, -2, 2 ) <=> substr( $b, -2, 2 ) } @a ),
  "\n";

exit(0);

producing:
Code:
343201134806
353201918107
323202132208
32201583126

On system like:
Code:
OS, ker|rel, machine: Linux, 3.16.0-7-amd64, x86_64
Distribution        : Debian 8.11 (jessie) 
perl 5.20.2

Best wishes ... cheers, drl
These 2 Users Gave Thanks to drl For This Post:

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #345
Difficulty: Medium
Scott McNealy received $238 million USD when the Oracle acquisition closed.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

List all file whose 3rd char is digit

list all file whose 3rd char is digit (or Nth position is digit) what will be the required command? (5 Replies)
Discussion started by: rahul
5 Replies

2. Shell Programming and Scripting

Awk numeric range match only one digit?

Hello, I have a text file with lines that look like this: 1974 12 27 -0.72743 -1.0169 2 1.25029 1974 12 28 -0.4958 -0.72926 2 0.881839 1974 12 29 -0.26331 -0.53426 2 0.595623 1974 12 30 7.71432E-02 -0.71887 3 0.723001 1974 12 31 0.187789 -1.07114 3 1.08748 1975 1 1 0.349933 -1.02217... (2 Replies)
Discussion started by: meridionaljet
2 Replies

3. UNIX for Dummies Questions & Answers

list all files containing 4 digit number using grep

how can i list all files in my home directory that have a 4 digit id number, the line number where the id is located and the id itself not printing the entire line? (5 Replies)
Discussion started by: hobiwhenuknowme
5 Replies

4. Programming

Find out 2^n+1 , where n is a 3 digit number

I have to write a c program which takes a 3 digit number n and calculates the value of (2^n)+1 and then determines the number is prime or not. I have tried to first calculate the value of 2^n and then adding one to it and then apply the logic of prime number. but the ultimate problem is that... (7 Replies)
Discussion started by: agrawal.prachi
7 Replies

5. Shell Programming and Scripting

extract number range from a file

Hi Everyone, a.txt 1272904667;1272904737;1 1272904747;1272904819;1 1272904810;1272904857;1 1272904889;1272904926;1 1272905399;1272905406;1 1272905411;1272905422;1 if i want to get the record, when the a.txt 1st field is between 1272904749 and 1272905399, any simple way by using awk,... (1 Reply)
Discussion started by: jimmy_y
1 Replies

6. Shell Programming and Scripting

list all file whose 2nd char is digit!

how to list all files in current directory whose second character is a digit. i guess i hav to use grep command + ls for this. but dont know how to use? (6 Replies)
Discussion started by: Sgupta
6 Replies

7. Shell Programming and Scripting

How to find out if there's a number at the end of a var

Hi I want to find whether the argument passed to my script ends in a number or not. Like, I want to find out if the argument is of the form: xyzwpq123 or just of the form xyzwpq. Can someone please help me!? Thanks (2 Replies)
Discussion started by: alirezan
2 Replies

8. Shell Programming and Scripting

Write a shell program to find the sum of alternate digits in a given 5-digit number

Hi Can any one please post the answer for the above program.................. (4 Replies)
Discussion started by: banta
4 Replies

9. Shell Programming and Scripting

Number a list at end of line using 'sed'

Hi All I have a script which has produced a list, I have used 'sed' to number my list, but i want to list at end of line with the first line starting at zero (0) and brackets round it ie My List i want Hello (0) this (1) day (2) can (3) be (4) sed '/./=' filename | sed '/./N; s/\n/) /'... (5 Replies)
Discussion started by: chassis
5 Replies

10. Shell Programming and Scripting

Cutting number from range in xml file

Hi folks, I need to find the following value: First,I need to find the starting section by finding the line: <process-type id="OC4J_RiGHTv_${SCHEMA_NAME}" module-id="OC4J"> Second,under this line I need to find the following line: <port id="rmi" range="3765-3776"/> And third,from this line... (4 Replies)
Discussion started by: nir_s
4 Replies

Featured Tech Videos