Definition:
When you use this command, it shows the content of a file directly in the terminal.
It can also create a new file.
It can join the content of two or more files together into a single file.
Syntax:
cat [option] filename
Example 1:
Command:
cat file.txt
Output:
It shows the content of file.txt on the terminal screen.
Example 2:
Command:
cat > newfile.txt
Output:
It creates a new empty file named newfile.txt.
(You can type text inside it, and then save with Ctrl+D.)
Example 3:
Command:
cat file1.txt file2.txt > combined.txt
Output:
It merges the content of file1.txt and file2.txt into a new file named combined.txt.
Options:
- -n: Number all output lines.
- -b: Number only non-blank lines.
- -s: Squeeze multiple adjacent empty lines into a single empty line.
- -E: Display a
$at the end of each line.