Question

Objectives

At the end of this of lab, you should be able to:

• securely      log in to a remote computer running a UNIX-like operating system

• read the      manual page for any command

• use the      UNIX file system

• edit a      text file

Notes:

·         In order to get familiar with UNIX, do all your work on UNIX.

·         A command line interface may be harder to learn, but can be more powerful for scripting and automating tasks.

·         Unlike in DOS, where a command can be run in both lower- and uppercase, Unix commands are generally in lowercase.

Actions

Login remotely to the Red Hat server of KPU using “PUTTY” client.

1. Every UNIX system maintains an internal clock that you can      access to print the current system date and time. Type “date” to see the current date and      time.

2. UNIX can      be used concurrently by multiple users. Type "who" to see who is logged in.

3. Type “ps” to see the processes running      on your terminal. You will see a process called bash (shell) is running. Note that each active process has a      unique number.

4. Type      "man date" to see a      description of the "date"      command. Type “man who” and “man ps” to see the descriptions of the “who” and “ps”      commands.

5. Use the      "echo" command to      create a one-line file (foo1) with      the content:
        "Quick brown fox."

6. Use the      "cat" command to      create a multi-line file (foo2) with      the content:
                    First line
                    Second line   

Use "ls" to list all the files in the current directory