Ruby Read Csv File Line By Line

Ruby comes with a built in csv library.

Ruby read csv file line by line.

You open a csv file for read write or append mode and use either or puts to append a new line. How to read files in ruby. Csv read method to read the complete file. Read the file the whole file line by line or a specific amount of bytes.

See the example below. Here is the process in detail. Ruby provides csv support in the standard library and it will help us do most of the job very quickly. Reading csv file in ruby.

Require csv customers csv read customers csv. Open the file with the open method. We use the csv. Use the file class to open a file.

Ruby stores each table row as an array with each cell as a string element of the array. Require csv csv read favorite foods csv or you can parse a string with csv. This method will read the entire file and store it in the variable. You can read a file in ruby like this.

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. You can read a file directly. This is what a csv file looks like. If you don t know how the ruby file class works.

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 standard library called csv to make it easy to read files with comman separated values.