Wolfram Examples:
Example 1
	Do[Print["Hello World"],{5}]
Example 2
    french=Import["http://fr.wikipedia.org/wiki/Main_Page"];
    french print
Example 3
    Export["out1.dat",[6.7,8.5,-5.3},"List"]
Example 4
    Export["out4.txt",{"first line","second line","3rd"}]
Example 5
    Import["file5.txt",{"Text","Lines"}]//InputForm;
    (* a comment *)
Example 6
     x=2;y=3;(* comment  *) z+0
Example 7
      f[x_]:=x^2;
      print f[a+b]
Example 8
      f[x_]:=Expand[x^2]
      f[a+b]
      a=2; f[a+b]
      a="a"; f[a+b]
Example 10
      f[x_]=x^2;
      f[3]
Example 11
      f[x_]=x^2; f[3]; Clear[f];
Example 12
      ?m
      m[s_]=2*s;
      m[5]
      Clear[m];
/WolframEgs.txt