answer questions

1 files changed, 23 insertions, 0 deletions

diff --git a/README.md b/README.md
index 65b4b63..cd3cdce 100644
--- a/README.md
+++ b/README.md
@@ -324,38 +324,61 @@ See `exercises/chapter-8.13`.
 
 What do the following commands do?
 
+Force copy `sample` to `sample.bak`.
+
 ```bash
 $ cp -f sample sample.bak
 ```
 
+Force copy `sample` to `sample.bak` and preserve the mode, ownership and timestamps from the original file.
+
 ```bash
 $ cp -fp sample sample.bak
 ```
 
+Remove all files from `$HOME/personal/` that start with `memo` and have
+a `.doc` file extension. Prompt for deletion before each file.
+
 ```bash
 $ rm -i ∼/personal/memo*.doc
 ```
 
+Remove all files from `$HOME/unixbook/finals/` that start with `ch`, is followed by 2 characters and has
+a `.prn` file extension. Prompt for deletion before each file.
+
 ```bash
 $ rm -i ∼/unixbook/final/ch??.prn
 ```
 
+Fore delete all files from `$HOME/unixbook/finals/` that ends with a `.o` file extension.
+
 ```bash
 $ rm -f ∼/unixbook/final/*.o
 ```
 
+Force delete all files that start with `lab` followed by any # from 1-6
+and has a file extension of `.c` or `.C` from the directory
+`$HOME/courses/ece446/`.
+
 ```bash
 $ rm -f ∼/courses/ece446/lab[1-6].[cC]
 ```
 
+Recursively delete the directory `$HOME/NotNeededDirectory`.
+
 ```bash
 $ rm -r ∼/NotNeededDirectory
 ```
 
+Recursively force delete the directory `$HOME/NotNeededDirectory`.
+
 ```bash
 $ rm -rf ∼/NotNeededDirectory
 ```
 
+Recursively delete the directory `$HOME/NotNeededDirectory`, prompting
+before each item to delete.
+
 ```bash
 $ rm -ri ∼/NotNeededDirectory
 ```