[talks/lbs] Added exit status slide to processes

1 files changed, 14 insertions, 0 deletions

diff --git a/src/talks/linuxgraphy-by-strabo/index.md b/src/talks/linuxgraphy-by-strabo/index.md
index 75cf951..9d828b0 100644
--- a/src/talks/linuxgraphy-by-strabo/index.md
+++ b/src/talks/linuxgraphy-by-strabo/index.md
@@ -512,6 +512,20 @@ A process can be **forked**, meaning a new process is created, with the same und
 
 
 
+&&clide &&font35
+
+#### Exit status
+
+Every process, before being deleted (and after being in a Terminated state) passes a small number, called the [exit status](https://en.wikipedia.org/wiki/Exit_status) (exit code), to it's parent process.
+For all intents and purposes, this number is an 8bit unsigned integer, meaning it's value is between 0 and 256.
+
+Pretty much universally, an exit code of 0 signifies a successful termination, and anything else specifies some sort of error code.
+Different programs specify the meaning of an exit code in different ways, some assign each number to a specific error, other use the bits representing the number as flags.
+
+&&/font &&/clide
+
+
+
 &&slide &&font35
 
 ### 2.3.2 Memory management