I have been trying to use C:/Windows/System32/OpenSSH/scp.exe command to copy a file from windows10 to unix server. But I always get error,

I have generated rsa key and copied into authorised_keys file at unix server. So no password required.

  my $src_cmd = "C:/Windows/System32/OpenSSH/scp ". $src_file. " vinot
+hg\@$server:".$target_path;
  print("Source copy cmd: $src_cmd\n");
  my $output = qx($src_cmd);
  my $status = $? >> 8 ;
  if( $status ){
    print("Error: $output\n");
    return 0
  }
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It prints,

Source copy cmd: C:/Windows/System32/OpenSSH/scp D:/dev/eee/src/sample
+.dat vinothg@ipaddress:/home/vinothg/src/20200218124538501.dat

The system cannot find the path specified.
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even I tried with sing backward slash(\) and double(\\)slash, but getting the same error. But when I copy and run the above command in windows cmd prompt it copies the files correctly without any issues.

I have been asked to use this scp command instead of installing perl modules.