Practice 1

1) Create a sub-directory called <temp> in your home directory which is the working directory when you just log in.
  
   cd

   mkdir temp

2) Create a sub-directory called <subtemp> in <temp>

   mkdir ./temp/subtemp	

3) Create file ex1.txt in <temp> and ex2.txt in <subtemp>

   cd temp
   cat > ex1.txt
   pwd
   ls
   ^D
   cd subtemp
   cat > ex2.txt
   Hello ex2!
   ^D	
   
4) Check file type and file's user access mode for file ex1.txt and ex2.txt

   cd $HOME                          $HOME means your home directory which is the working directory when you log in. 
   ls -l ./temp/ex1.txt  
   ls -k ./temp/subtemp/ex2.txt
   

5) rename ex1.txt as ex1 and move it to $HOME

   mv $HOME/temp/ex1.txt  $HOME/ex1


6) change file pemissions of ex1, add user and group execute permission. 
	
   chmod ug+x $HOME/ex1

7) copy file ex1 to your home directory
  
   cp $HOME/ex1  $HOME/

8) copy the whole <temp> to $HOME/temp1

   cp -r $HOME/temp $HOME/temp1 

9) remove all files and sub-directories in <temp>

   rm -rf $HOME/temp/*

10) remove <temp>
   
   rmdir $HOME/temp