The document provides syntax and descriptions for various Linux commands including bc, cal, cat, cd, cp, date, echo, grep, id, last, lastlog, ls, man, mkdir, mv, pwd, rm, rmdir, sort, shutdown, who, whois, more, less, clear, cmp, wc, whoami, head, and tail. It explains what each command is used for and provides the basic syntax.

1. linux bc command is used for command line calculator. It is similar to basic calculator. By using which we can do basic mathematical calculations. SYNTAX: bc COMMAND:

2. The Syntax is

3. bc [options]

4. cal COMMAND:

5. cal command is used to display the calendar.

6. SYNTAX:

7. The Syntax is

8. cal [options] [month] [year]

9. cat COMMAND:

10. cat linux command concatenates files and print it on the standard output.