what does cat do in linux code example

Example 1: cat meaning linux

$ cat file.txt #cat shows contents of file
This is the content of file.txt

Example 2: cat file commaand explaind

cat [OPTION] [FILE]...

Example 3: cat command in linux

cat command allows us to 
create single or multiple files,view contain of file, concatenate files and redirect output in terminal or files.