[SOLVED] Delete row of csv file that doesn't meet a criteria
ProgrammingThis forum is for all programming questions.
The question does not have to be directly related to Linux and any language is fair game.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
24328,BR,RJ,Rio De Janeiro,
What I need is to create a new file (lets call file_3) that match the field locId of the file_1 with the field geo_id of the file_2
In other words, if a field locId (file_1) and a field gep_id (file_2) are equal, generate a file_3 with the row of file_1 that matched the criteria.
Using the tables above and running the script the resulting file_3 would be
join: InFile1.csv:2: is not sorted: "16777216","16777471","17"
I suspect you ran my code against files different from those in your original post. join wants input files in sorted order. Here is a revised solution which assures sorted files. This code requires the use of a temporary work file.
I post a solution only after testing it. The code generates the expected output here.
Are you testing with the same small test files which were given in your original post? If not, please do that first. If the code works, then test with the large real-world files. If the code works with small test files but not with large real-world files you may be discovering something interesting in your data.