initial commitHEADmaster

1 files changed, 8 insertions, 0 deletions

diff --git a/code/snippets/spawn_popen_block.rb b/code/snippets/spawn_popen_block.rb
new file mode 100644
index 0000000..193af6a
--- /dev/null
+++ b/code/snippets/spawn_popen_block.rb
@@ -0,0 +1,8 @@
+# An IO object is passed into the block. In this case we open the stream
+# for writing, so the stream is set to the STDIN of the spawned process. 
+#
+# If we open the stream for reading (the default) then
+# the stream is set to the STDOUT of the spawned process.
+IO.popen('less', 'w') { |stream|
+  stream.puts "some\ndata"
+}