README.md

@@ -1,7 +1 @@
 https://stackoverflow.com/a/63373815
-
-# test
-
-```
-PROCIO_DIR=test crystal procio.cr
-```

procio.cr

@@ -1,9 +1,9 @@
-dir = Path[ENV.fetch("PROCIO_DIR", "/proc")]
+dir = ENV.fetch("PROCIO_DIR", "/proc")
 result = {} of String => Array(UInt64)
 time = Time.local.to_s("%s%9N")
 
 Dir.entries(dir).each do |entry|
-  next unless (entry =~ /^\d+$/) && File.directory?(dir/entry)
+  entry =~ /^\d+$/ || next 
 
   begin
     comm = File.read("#{dir}/#{entry}/comm").chomp