Split a large CSV file and add headers to each file

README.md

Split a large CSV file and add headers to each file

Step One: Split file

$ split -l 5000 users.csv ./split-files 

5000 is the number of lines you want for each file.)

Step two: Appending ‘.csv' to each file

$ cd ./split-files
$ for f in *; do echo mv "$f" "$f.csv"; done 

Step three: Adding header to each file

for i in *.csv; do sed -i '' '1i\  
First column name, Second column name, etc, etc  
' $i; done