cat

Example Commands

• Display file content: cat filename.txt
• Create a file: cat > filename.txt
• Concatenate multiple files: cat file1.txt file2.txt > mergedfile.txt
• Append file content: cat additional.txt >> existingfile.txt
• Number lines: cat -n file.txt

Other Useful Options

• -n: Numbers all output lines, which is useful for viewing or debugging files with content that needs to be referenced by line number.
• -s: Suppresses repeated empty output lines, condensing the output to make it easier to read.
• -E: Displays a $ at the end of each line, making it easier to see line breaks, especially in files with mixed content or trailing spaces.