I have files in directory and I want to know average number of this files in BASH.I am in folder where are 4 files and I want to write a code which will give me average number of files in this directory. I find something common [Unix find average file size](https://stackoverflow.com/questions/9195493/unix-find-average-file-size) but this give me average file size but I want to gain average number or amount of this files.