Explain it with proper e.g
When a file is created, edited, or touch'ed -- the modification time would be appropriately adjusted.
What abt touch command? Is it used for changing file access & modification time or not
That's exactly what it's for.
Are you not acquainted with man ? If not, consult man man and then man touch .
I realize that this post can easily be misconstrued as sarcasm, but it is sincere, since your question is answered by the documentation.
Regards,
Alister