Introduction - If you have any usage issues, please Google them yourself
Program Function: Opens a file, write a string of characters, the file size no more than file_size_max files over file_size_max will move the file to the final storage location, and rename (original file name+ number of ways) temporary file storage location: " / home/test/test_file/file_test.txt " the final document is stored as:" /home/test/file_save/file_testXX.txt " where XX is the number of 0-Max_cont