How to insert random numbers into each line?


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to insert random numbers into each line?
Prev   Next
# 1  
Old 05-23-2016
How to insert random numbers into each line?

I have a file contains thousands of lines. I want to insert n random numbers into each line at
specific position. Like this:
Code:
0      22……
1      33……
……
……

I want to insert 3 random numbers from position 2 to 4 into each line.
Code:
0  325  22……
1  685  33……
……
……

Moderator's Comments:
Mod Comment Please use CODE tags when displaying sample input, output, and code segments.

Last edited by Don Cragun; 05-23-2016 at 11:05 PM.. Reason: Add CODE tags.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. Homework & Coursework Questions

Random numbers

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! Write a shell script that will take the sum of two random number? Ex: Random n1 +Random n2 = result i tries to write it but i had some dufficulties ... (3 Replies)
Discussion started by: renegade755
3 Replies

2. Shell Programming and Scripting

insert one line inbetween file with use of numbers

Hi All, I have one file name called test.txt and its having numbers inside the file.I need to identified next available number with use of unix shell scipt and have to update next available number with use of unix shell script. Example:- cat test.txt 5001 5002 5003 5005 7000 7001 ... (5 Replies)
Discussion started by: susindram
5 Replies

3. Shell Programming and Scripting

Insert rows based on line numbers

Can I insert rows based on line numbers. Say If I need to insert 1 or more rows in a file from line number 10. Can I do that in UNIX I have a file something like A B C D E F After row C, I wanted to add 2 records as X and Y. I have the line number after C as my reference. Can I... (2 Replies)
Discussion started by: Muthuraj K
2 Replies

4. Shell Programming and Scripting

Replace a random string of numbers

Hi Can someone help me with this one? I have string.. (PROC_PROC_ID == 12183) <--PID is dynamic and i want to replace the PID number with whatever PID from /opt/hpws/apache32_2/logs/httpd.pid file. i'm having problem since the PID on the string is dynamic. It may be 2-5 digits or more. ... (5 Replies)
Discussion started by: ryandegreat25
5 Replies

5. Shell Programming and Scripting

Generating random numbers

Hi, I am having trouble with generating random numbers. can this be done with awk? So I have a file that looks like this: 23 30 24 40 26 34 So column1 is start and column2 is end. I want to generate 3 random #'s between start and stop: So the output will look like this: ... (9 Replies)
Discussion started by: phil_heath
9 Replies

6. Shell Programming and Scripting

Random Numbers - Perl

Hi Guys I have a script to find Ranomd numbers. But I want to make the file to produce more random. Could u guys help me plz. In this Script I have the code that generates random in for loop and the range I have specified in my %chromlength input and out put will be like this chrno start end... (3 Replies)
Discussion started by: repinementer
3 Replies

7. Shell Programming and Scripting

Random numbers from 0 to 1000

Hello All, I want to make a simple script which generate random number from 0 to 1000. and simply display it. Plz HELP!!!!!! Regards, Waqas Ahmed (2 Replies)
Discussion started by: wakhan
2 Replies

8. UNIX for Dummies Questions & Answers

Random numbers without repetition

Is anyone know some scripts to generate random number without repetition using bash; for example generate 10 different random numbers. Thanks (8 Replies)
Discussion started by: asal_email
8 Replies
Login or Register to Ask a Question