Answer:
Commands: commands are also known as "programs" and the program is a set of rules that performs a specific task which is executed by a computer.
Unix is an operating system. that supports multi-tasking and multi-user functionality. Unix is most widely used in all forms of computing systems such as desktop, laptop, and servers. It provides a Graphical user interface similar to windows.
The Unix operating system there are various commands. The list of five Unix commands can be given as:
1) cal
2) date
3) banner
4) who
5) whoami
1)cal:
The cal command stands for calender. It displays the date.
Syntax:
$ cal
or
$ cal [[month] year]
Example:
$ cal 10 2019
2)date:
The date command stands for date and time. It displays the system date and time.
Syntax:
$date
or
$ date[+format]
Example:
$ date +%d/%m/%y
3) banner
The banner command stands for display the text in to a large size.
Syntax:
$banner message
Example:
$banner Unix
4) who
The who command stands for display the list of users currently logged in.
Syntax:
$who
or
$who [option] … [file][arg1]
Example:
$who
5) whoami
The whoami command stands for display the user id of the currently logged-in user.
Syntax:
$whoami
Example:
$whoami
Explanation:
1)cal command display the current month and year.
2)date command display system date and time.
3)banner command display text in large size.
4)who command display the user name who currently login.
5)whoami command display user id.
False. You should have little text and lots of pictures, because you are the one who should be doing the explaining, not the presentation.
Answer:
Batch Processing is the processing of previously collected jobs in a single batch.
Explanation:
Some advantages would be that a data center's staff can schedule batch processing during times when the computers are otherwise idle, such as overnight, The computer operators can delay or prioritize different batches easily, and computer files containing commands, programs and data; once created, some can be run repeatedly as needed, adding convenience for the staff and helping keep processing costs low.
Some disadvantages would be that all of a batch job's input data must be ready before the computer can run it, problems with data, errors and program crashes that occur during batch jobs bring the whole process to a halt, and the inputs must be carefully checked before the job can be run again.
https://www.techwalla.com/articles/advantages-disadvantages-of-batch-processing
