Write a shell script program, which takes a command line parameter, which is a file. If the file is an ordinary file, print the name of the file owner and the last modification date. If the program has multiple parameters, the output error message. Write shell program, statistics the number of ordinary files, subdirectories and executable files under the specified directory, and the path name of the directory is imported by parameters. Programming with bash, the program from the keyboard input of N integers, calculate its total, maximum and minimum value and output, from small to large sorting and output.

Filename	Size	Update
lab	0	2018-06-29
lab\lab3_1.txt	483	2018-06-29
lab\lab3_2.txt	591	2018-06-29
lab\lab3_3.txt	672	2018-06-29

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