in reply to system(find) unable to find a file even if the file exists

On windows, the find, command searches for text within a file, or set of files described by a wildcard expression: 

C:\>find /?
Searches for a text string in a file or files.

FIND [/V] [/C] [/N] [/I] [/OFF[LINE]] "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 str
+ing.
  /OFF[LINE] Do not skip files with offline attribute set.
  "string"   Specifies the text string to find.
  [drive:][path]filename
             Specifies a file or files to search.

If a path is not specified, FIND searches the text typed at the prompt
or piped from another command.

[download]

Think simple grep-like tool.

Your use of -name suggests you are trying to use a *nix-style find command; which is available from various sources, but from the error you are getting, is not the one that is being run.

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