Ruby Read Csv File Line By Line

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 read csv file line by line.

Close the file with the close method. Require csv csv read favorite foods csv or you can parse a string with csv. How to read files in ruby. This method will read the entire file and store it in the variable.

Use the file class to open a file. You can read a file in ruby like this. Read method and parse the file name as argument. Ruby stores each table row as an array with each cell as a string element of the array.

Csv read method to read the complete file. Ruby comes with a built in csv library. Require csv customers csv read customers csv. Read the file the whole file line by line or a specific amount of bytes.

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. See the example below. Ruby provides csv support in the standard library and it will help us do most of the job very quickly. 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.

This is what a csv file looks like. Here is the process in detail. You open a csv file for read write or append mode and use either or puts to append a new line. Open the file with the open method.

Ruby comes with a standard library called csv to make it easy to read files with comman separated values. Reading csv file in ruby.