Input files:File: Article1.txt:paragraph1 It is a long established fact that a reader will......paragraph2 It is a long established fact that a reader will......paragraph3 It is a long established fact that a reader will......File: Article2.txt:It is a long established fact that a reader will......It is a long established fact that a reader will......It is a long established fact that a reader will......File: Article3.txt:Lorem Ipsum is simply dummy text of the printing....... Lorem Ipsum is simply dummy text of the printing......Lorem Ipsum is simply dummy text of the printing.......Desired Output:File: example.csv:column1     column2                     column3Article1    paragraph1 It is a......    paragraph2 It is a....... Article2    paragraph1 It is a......    paragraph2 It is a....... Article3    Lorem I.......              Lorem I....... 
Combining several text files into a single csv
shell script;csv