A simple new example of command line and file handling from yesterday's C course - [here] - reading all the files named on the command line, and reporting on the length of each of them.

It's so easy to go straight from "Hello World" tp a very complex example, and loose all the delegates / readers along the way ... this example shows an intermediate stage and should help you along.
(written 2014-12-03)

 C210 - C and C based languages - File Handling
  [2002] New C Examples - pointers, realloc, structs and more - (2009-01-20)
  [2571] Reading and writing files in C - (2010-01-12)
  [2572] The what and why of C pointers - (2010-01-13)
  [3122] When is a program complete? - (2011-01-06)
  [3386] Adding the pieces together to make a complete language - C - (2011-08-11)
  [4340] Simple C structs - building up to full, dynamic example - (2014-12-03)

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