I am planning to automate multiple files through Unix script.

Could you please guide for making the automation for multiple files ?

Eg.

I have to check header and footer for all files in the particular path and the header pattern should match with the filename.

Code:

Filename- Filename.txt
Header - HEAD,filename.txt
1,Sumit,31,Delhi,,
2,Virat,33,Meerut,,
3,Amit,34,Jammu,,
Trailer -TRAIL,3

Also,I have to check header,trailer,file and header filename match,count check in trailer section,Total column check and not null check to automate the things.