mattkenefick · August 25, 2023 04:29 · Jan 9, 2019 · Jan 9, 2019 · Jan 9, 2019 · Jan 9, 2019
diff --git a/README.md b/README.md
@@ -44,6 +44,6 @@ Results:
 
 The copy and paste example will create the two example files, the merge script, make it executable, execute it, then display the results.
 
-Note: This will not execute properly on Windows Cmder because of the multi-line EOF. It should work just fine in a standard terminal, Git bash, etc. 
+Note: This will not execute properly on Windows Cmder because of the multi-line heredoc. It should work just fine in a standard terminal, Git bash, etc. 
 
 
diff --git a/README.md b/README.md
@@ -1,3 +1,6 @@
+# Purpose
+
+If you're making a project where you need a base level of configs and various combinations of overrides... this `merge.sh` script will let you combine multiple `.env` or `.ini` files (key/value) and remove duplicates based on the key.
 
 # Usage Example
 

diff --git a/README.md b/README.md
@@ -2,15 +2,17 @@
 # Usage Example
 
 Create both files in a structure like:
+```
     specific.env
     base.env
     merge.sh
-
+```
+
 Run
-    sh merge.sh specific.env base.env
+    `sh merge.sh specific.env base.env`
 
 Results:
-    cat merged.env
+    `cat merged.env`
 
 
 # Copy and Paste Example

diff --git a/README.md b/README.md
@@ -0,0 +1,44 @@
+
+# Usage Example
+
+Create both files in a structure like:
+    specific.env
+    base.env
+    merge.sh
+
+Run
+    sh merge.sh specific.env base.env
+
+Results:
+    cat merged.env
+
+
+# Copy and Paste Example
+
+    echo 'name=Barbara Miller
+    city=Brooklyn' > specific.env;
+
+    echo 'name=John Doe
+    city=Manhattan
+    state=NY
+    zip=10001' > base.env;
+
+    cat > merge.sh <<\EOF 
+    #!/bin/bash
+    cat $1 > tmp0
+    cat $2 >> tmp0
+    awk -F "=" '!a[$1]++' tmp0 > tmp1 && mv tmp1 merged.env && rm tmp0
+    EOF
+
+    chmod 0755 merge.sh;
+
+    sh merge.sh specific.env base.env;
+
+    cat merged.env;
+
+
+The copy and paste example will create the two example files, the merge script, make it executable, execute it, then display the results.
+
+Note: This will not execute properly on Windows Cmder because of the multi-line EOF. It should work just fine in a standard terminal, Git bash, etc. 
+
+
diff --git a/base.env b/base.env
@@ -0,0 +1,4 @@
+name=John Doe
+city=Manhattan
+state=NY
+zip=10001
diff --git a/merge.sh b/merge.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+cat $1 > tmp0
+cat $2 >> tmp0
+
+awk -F "=" '!a[$1]++' tmp0 > tmp1 && mv tmp1 merged.env && rm tmp0
+
diff --git a/specific.env b/specific.env
@@ -0,0 +1,2 @@
+name=Barbara Miller
+city=Brooklyn