1 files changed, 30 insertions, 0 deletions
diff --git a/bash.md b/bash.md
index 8877982..432bc5e 100644
--- a/bash.md
+++ b/bash.md
@@ -66,6 +66,9 @@ Associative arrays:
 
 Assignment:
 
+    # Indexed
+    array=(foo bar "baz bom"...)
+    # Associative
     array=([bla]=foo [ble]=bar...)
 
 All values:
@@ -78,6 +81,23 @@ All keys:
     ${!array[*]}
     ${!array[@]}
 
+So looping:
+
+    # Over values
+    for x in "${array[@]}"; do ...
+    # Over keys (0-based indices for indexed)
+    for x in "${!array[@]}"; do ...
+
+
+Array size:
+
+    ${#array[@]}
+
+Slice:
+
+    # n elements starting at index i
+    ${array[@]:i:n}
+
 ## Commandline arguments
 
 * `$#`: number of arguments.
@@ -99,3 +119,13 @@ Positional arguments will have to be supplied after flag options (`command
 [options] <args>`):
 
     shift $((OPTIND-1))
+
+
+## Shell optional behavior/settings/options (`shopt` builtin)
+
+    # Enable
+    shopt -s <option>
+    # Disable
+    shopt -u <option>
+
+* `nocaseglob`: glob matching is case insensitive