cat [-benstuvAET] [--number] [--number-nonblank] [--squeeze-blank] [--show-nonprinting] [--show-ends] [--show-tabs] [--show-all] [--help] [--version] [file…]
cat reads each filename in sequence and writes it on the standard output. If no input file is given, or if the "-" argument is encountered, cat reads from the standard input file. Use the --help option to see a short description of all of the options to the cat command.
1 cat /etc/passwd 2 cat -n file1 file2 >> file3 3 cat -T datafile 4 cat -b datafile |
Explanation
Displays the contents of the /etc/passwd file.
Concatenates file1 and file2 and appends output to file3. The -n switch causes each line to be numbered.
Displays tabs as ^I.
Numbers all nonblank lines.
3.137.178.9