Search entered text from inside of the text file.

set fso=CreateObject("Scripting.FileSystemObject")
set f=fso.OpenTextFile("Path_of_the_text_file.txt",1, False)
val=Inputbox("enter the word to be searched")
flag = false
do until f.AtEndOfStream
str1=f.readLine
if inStr(str1,val) then
flag = True
exit do
else
flag = false
End if
Loop
if flag = True then
msgbox val & " found"
else
Msgbox val & " not Found"
f.close
set f=nothing
set fso=nothing