What is the 'cat' command?

The cat command is a standard Unix/Linux command used to concatenate and display the contents of files. Here are some key points about the cat command:

• Display File Contents: You can use cat to view the contents of a file in the terminal. For example, cat filename.txt will show the contents of filename.txt.

• Concatenate Files: You can combine multiple files into one. For example, cat file1.txt file2.txt > combined.txt will merge file1.txt and file2.txt into combined.txt.

• Create New Files: You can create a new file and add content to it using cat. For example, cat > newfile.txt allows you to type text into newfile.txt until you press Ctrl + D to save.

• View with Line Numbers: You can display line numbers alongside the content using cat -n filename.txt.

The cat command is simple yet powerful for file manipulation and viewing in the terminal. If you have more questions or need examples, let me know!