count all files in a directory linux code example

Example 1: How to count number of files in each directory

du -a | cut -d/ -f2 | sort | uniq -c | sort -nr

Example 2: display all files in a directory linux

ls command list computer files in a directory in Unix OS with next structure:
ls [OPTION]... [FILE]...
Examples:
ls -l #display all files in current directory with  (-l) long format.
ls -a /directory #display all hidden files in given directory that start with .