Parse comma separated file - awk

The following output will appear after running the commands. Here, FS Field Separator variable is used to define the field separator of the file. Here, the FS variable is used to define the field separator of the file.

The third column of the file contains the username that has been printed here. The following output will appear after running the above commands. Registered User. Join Date: May Hi, all I need to get fields in a line that are separated by commas, some of the fields are enclosed with double quotes, and they are supposed to be treated as a single field even if there are commas inside the quotes.

Join Date: Jan If Perl is acceptable: Code :. Originally Posted by radoulov. Join Date: Oct Code :. Like field with imbedded CRs or quotes: Code :. Join Date: Nov Try: Code :. Originally Posted by Scrutinizer.

Hi Experts, Please support I have below data in file in comma seperated, but 4th column is containing comma in between numbers, bcz of which when i tried to parse the file the column 6th value is being removed from the file and value How can awk ignore the field delimiter like comma inside a field?

We have a csv file as mentioned below and the requirement is to change the date format in file as mentioned below. Sign up using Email and Password.

Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Related Hot Network Questions. In some cases, you may have no other choice but to use an external library to support some of the complex formattings. You can read more about the IFS variable in my post on bash environment variables.

To read each line of the csv file you can use the builtin command read which read a line from the standard input and split it into fields, assigning each word to a variable. Without the -r option, unescaped backslashed would be discared instead of being represented as a character. Note that read will need a variable name for each field that you want to capture and the last one specified would simply be a catch-all of the remaining fields.

If you look carefully at the output data, some of it returns incomplete values as some fields in the CSV file are text fields that contain the comma , separator and are enclosed in double quotes ". You can figure out how many bad entries we have with another while loop, a simple regex, and a counter using Arithmetic Expansion. The example below uses the compound command to increment the count variable. So, unless you are sure to not have such text fields, I would not recommend using this first method.

Awk is a domain-specific language designed for text processing. It is available on most Unix-like system, unfortunately, there may be a lot of variation between implementations and versions.