Hi Anbu23,

I am not sure if I missing something here by using the given solution :
tr -d "\000-\037\177" < file because the output is still contained the control
character.

Provided a sample of the input file :
-------------------------------------------------
Monday Tuesday  Wednesday
Thursday Friday
Saturday 
Sunday
Number = 0.36")· )

Apple orange 
Pinapple


Output file ( display lines with control character ):
---------------
>Monday Tuesday  Wednesday
>Saturday 
>Number = 0.36")· )
>Apple orange 
>


Thanks in advance,
cursive