Ruby Read Csv File Line By Line

Read method and parse the file name as argument.

Ruby read csv file line by line.

See the example below. 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 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. Csv read method to read the complete file.

Ruby stores each table row as an array with each cell as a string element of the array. This method will read the entire file and store it in the variable. Reading csv file in ruby. 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 directly. 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 comes with a built in csv library. How to read files in ruby.

Here is the process in detail. Use the file class to open a file. Require csv customers csv read customers csv. Ruby comes with a standard library called csv to make it easy to read files with comman separated values.

Close the file with the close method. 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. Require csv csv read favorite foods csv or you can parse a string with csv.

Open the file with the open method. You can read a file in ruby like this.