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  Copy To / Move To Right Click Grep for Windows  
Windows Administration from CMD Line   grep -i "tricktreat" c:\1ws\yaps.txt -i ignore case
  FIX Master Boot Record grep -i -n "datat" c:\1ws\yaps.txt -n provide line number in file
    grep -? Help

System Files Explained

    -s Suppress all error messages produced by non-readable files
    grep -i -n -v "2@hotmail.com" c:\1ws\yaps.txt -v All lines but those matching are printed
15 CMD Commands and More   grep VS FindSTR