bash : add recursive function.

.README.md

@@ -538,6 +538,11 @@ Command|Description
 ---|---
 `ps [PROGRAM]`|Show process info for matching [PROGRAM] name.
 
+## Recursive.
+Command|Description
+---|---
+`recursive [COMMAND]`|Cd into every directory recursively and run specified command in each dir.
+
 ## Shopt.
 
 Shopt|Description

document/linux/config/bash/module/recursive.sh

@@ -0,0 +1,30 @@
+# run something recursively over all directories.
+# usage: recursive [COMMAND]
+recursive()
+{
+  local current="${PWD}"
+  local dirs=$(find -type d)
+  local total=$(echo ${dirs} | wc -w)
+  local count=0
+
+  for dir in ${dirs}; do
+    # increment counter.
+    ((count++))
+
+    # cd into the next dir.
+    cd "${current}"
+    cd "${dir}"
+
+    # echo status.
+    echo -e "${color_blue}[${count}/${total}] recursive dir: ${dir}${color_default}"
+
+    # run command.
+    $*
+  done
+
+  # return back on complete.
+  cd "${current}"
+}
+
+# autocomplete.
+complete -F _autocomplete_nested recursive