3.Document-simple-if-and-if-else-statements.txt

Simple if statement:
-----------------
if command1
then
  command2
  command3
  x=5
  echo 
fi

Note: command2, command3, x=5 and echo will execute if command1 is success else they will skip
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simple if else statement:
------------------------
if command1
then
  command2
  command3
else
  command4
  command5
fi

Note: command2, command3 (lines between then and else) will execute if command1 is success else (command1 is failed) command4, command4 (lines between else and fi )will execute.

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