find "keyword" < ''inputfilename'' > ''outputfilename''
searches for a text string in a file or files.
Find [/v] [/c] [/n] [/i] "string" [[drive:][path]filename[ ...]]
/v displays all lines not containing the specified string.
/c displays only the count of lines containing the string.
/n displays line numbers with the displayed lines.
/i ignores the case of characters when searching for the string.
"string" specifies the text string to find.
[drive:][path]filename specifies a file or files to search.
If a pathname is not specified, find searches the text typed at the prompt
or piped from another command.