Changes between Version 4 and Version 5 of ubuntuinstall

Timestamp:

Nov 16, 2016, 7:58:08 AM (9 years ago)

Author:

admin

Comment:

--

ubuntuinstall

@@ -43 +43 @@
  - Locate the '''Ubuntu CD Image''' file you downloaded from the LEARN ftp
  - Right click on VM to make a '''Normal Start''' VM. You should now see a separate window with Installation screen
+
+== Installation ==
 
 === Initial Installation options ===
@@ -117 +119 @@
 '''Note''': For this Hands-on you only need your pc(pc."your domain.ws.ac.lk") VM. Please shut down the additional VM's
 
+== Playing with Linux ==
+
+=== Working with directories ===
+
+A brief overview of the most common commands to work with directories:
+'''pwd''', '''cd''', '''ls''', '''mkdir''' and '''rmdir'''. These commands are available on any Linux (or Unix)
+system.
+
+ - '''pwd''' : Print Working Directory (Will tell you the location you are currently working)
+ - '''cd''' : You can change your current directory with the cd command
+  * '''cd''' : shortcut to get back into your home directory. Just typing cd without a target directory, will put you in your home directory
+  * '''cd ..''' : To go to the parent directory (the one just above your current directory in the directory tree)
+  * '''cd -''' : To go to the previous directory
+ - '''ls''' : You can list the contents of a directory with ls
+  * '''ls -a''' : To show all files. Showing all files means including the hidden files. When a file name on a Linux file system starts with a dot, it is considered a hidden file and it doesn't show up in regular file listings.
+  * '''ls -l''' : to display the contents of the directory in different formats or to display different parts of the directory. 
+  * '''ls -lh''' : shows the numbers (file sizes) in a more human readable format.
+ - '''mkdir''' : Create new directories
+ - '''mkdir -p''': To create parent directories as needed
+ - '''rmdir''': To remove the directory. (Directory has to be empty)
+
+'''Some exercise'''
+1. Login to your VM. and Display your current directory
+2. Change to /etc directory and display current directory
+3. Go to root directory and list the contents
+4. List a long listing of the root directory
+5. Go to your home directory
+6. Make directory named 'test'
+7. make a directory inside test directory named 'one' and make a hidden directory inside 'one' directory named '.hidden'. Make a directory inside test directory named 'one' and make a hidden directory inside 'one' directory named 'unhidden'. 
+8. Go to 'one' directory and list the content.
+9. Then list all contents
+10. Remove directory 'unhidden'
+11. Go to your home and try to remove directory 'test'
+
+{{{
+dilum@DilumL:~$ pwd
+/home/dilum
+dilum@DilumL:~$ cd  /etc
+dilum@DilumL:/etc$ pwd
+/etc
+dilum@DilumL:/etc$ cd ..
+dilum@DilumL:/$ ls
+bin   etc         lib    lost+found  opt   run   var
+boot  home        lib32  media       proc  sbin  tmp       mnt 
+dev   lib64       root   sys         usr
+dilum@DilumL:/$ ls -l
+total 88
+drwxrwxr-x   2 root   root  4096 Mar  4  2016 bin
+drwxr-xr-x   3 root   root  4096 Feb  9  2016 boot
+drwxr-xr-x  20 root   root  3360 Nov 16 08:16 dev
+drwxr-xr-x 155 root   root 12288 Aug 29 09:30 etc
+drwxr-xr-x   4 root   root  4096 Aug 16 08:54 home
+drwxr-xr-x  19 root   root  4096 Mar  4  2016 lib
+drwxr-xr-x   2 root   root  4096 Mar  4  2016 lib32
+drwxr-xr-x   2 root   root  4096 Mar  4  2016 lib64
+drwx------   2 root   root 16384 Dec 15  2015 lost+found
+drwxr-xr-x   4 root   root  4096 Dec 15  2015 media
+drwxr-xr-x   2 root   root  4096 Dec 15  2015 mnt
+drwxr-xr-x   3 root   root  4096 Jan 26  2016 opt
+dr-xr-xr-x 189 root   root     0 Nov 16 08:16 proc
+drwx------  12 root   root  4096 Sep  6 16:25 root
+drwxr-xr-x  26 root   root   960 Nov 16 08:41 run
+drwxr-xr-x   2 root   root  4096 Mar  4  2016 sbin
+dr-xr-xr-x  13 root   root     0 Nov 16 08:16 sys
+drwxrwxrwt  18 root   root  4096 Nov 16 12:50 tmp
+drwxr-xr-x  12 root   root  4096 Nov  8 12:39 usr
+drwxr-xr-x  13 root   root  4096 Dec 16  2015 var
+dilum@DilumL:/$ cd
+dilum@DilumL:~$ pwd
+/home/dilum
+dilum@DilumL:~$ mkdir test/one/.hidden
+mkdir: cannot create directory ‘test/one/.hidden’: No such file or directory
+dilum@DilumL:~$ mkdir -p test/one/.hidden
+dilum@DilumL:~$ mkdir -p test/one/unhidden
+dilum@DilumL:~$ cd test/one
+dilum@DilumL:~/test/one$ ls
+unhidden
+dilum@DilumL:~/test/one$ ls -a
+.  ..  .hidden  unhidden
+dilum@DilumL:~/test/one$ rmdir unhidden/
+dilum@DilumL:~/test/one$ ls -a
+.  ..  .hidden
+dilum@DilumL:~$ rmdir test
+rmdir: failed to remove ‘test’: Directory not empty
+
+}}}
+
 === Setting UP IP Addresses ===
 
@@ -133 +222 @@
     dns-search yourdmain 
 }}}
-When you completed the IP settings of both VMs, restart them and then login to confirm correct IP settings.
-
-
+When you completed the IP settings of the VM, restart and login to confirm correct IP settings.
+
+