Ruby Read Csv File Line By Line

How to read files in ruby.

Ruby read csv file line by line.

Open the file with the open method. Csv read method to read the complete file. Id name 1 chocolate 2 bacon 3 apple 4 banana 5 almonds now you re going to learn how to use the ruby csv library to read write csv files. Ruby stores each table row as an array with each cell as a string element of the array.

Close the file with the close method. Here is the process in detail. Read method and parse the file name as argument. If it was a simpler file we could read it line by line and use split to cut it into parts but in this file there is a field that has a comman in it.

Ruby comes with a built in csv library. This method will read the entire file and store it in the variable. Although there are various ways to achieve the same results we will be focusing in just 2 of the possible ways read the file entirely with the read method or line by line with the foreach method. If you don t know how the ruby file class works.

Reading csv file in ruby. Require csv customers csv read customers csv. See the example below. Read the file the whole file line by line or a specific amount of bytes.

Ruby provides csv support in the standard library and it will help us do most of the job very quickly. This is what a csv file looks like. Use the file class to open a file. We use the csv.

You open a csv file for read write or append mode and use either or puts to append a new line. You can read a file in ruby like this.