diff --git a/.config/bash/module/group.sh b/.config/bash/module/group.sh
new file mode 100644
index 0000000..4209a20
--- /dev/null
+++ b/.config/bash/module/group.sh
@@ -0,0 +1,38 @@
+# Group files by extension.
+# Usage: group_ext [FILES]
+function group_ext() {
+	local IFS=$'\n'
+	local targets=(${@})
+	[[ "${targets}" = "" ]] && targets=($(_ls_file))
+
+	process() {
+		local ext=${target##*.}
+		[[ -d "${target}" ]] && { _skip "Is a directory."; return 0; }
+		[[ "${ext}" = "${target}" ]] && { _skip "No extension."; return 0; }
+
+		mkdir ${ext} 2> /dev/null
+
+		mv -- ${target} ./${ext}/${target}
+	}
+
+	_iterate_targets process ${targets[@]}
+}
+
+# Group files and dirs by year.
+# Usage: group_year [FILES]
+function group_year() {
+	local IFS=$'\n'
+	local targets=(${@})
+	[[ "${targets}" = "" ]] && targets=($(ls))
+
+	process() {
+		local year=$(stat --format=%y ${target})
+		year=${year%%-*}
+
+		mkdir ${year} 2> /dev/null
+
+		mv -- ${target} ./${year}/${target}
+	}
+
+	_iterate_targets process ${targets[@]}
+}
diff --git a/.config/bash/module/recursive.sh b/.config/bash/module/recursive.sh
index 115fb60..91c071c 100644
--- a/.config/bash/module/recursive.sh
+++ b/.config/bash/module/recursive.sh
@@ -26,6 +26,9 @@ function recursive() {
 
 		# run command.
 		${*} || failed=${?}
+
+		# Add newline if not the last one.
+		[[ "${count}" = "${total}" ]] || echo
 	done
 
 	# return back on complete.
@@ -62,6 +65,9 @@ function recursive1() {
 
 		# run command.
 		${*} || failed=${?}
+
+		# Add newline if not the last one.
+		[[ "${count}" = "${total}" ]] || echo
 	done
 
 	# return back on complete.
diff --git a/.doc/bash.md b/.doc/bash.md
index e80b38f..3c66943 100644
--- a/.doc/bash.md
+++ b/.doc/bash.md
@@ -24,10 +24,10 @@ Command|Description
 `archive_fast [DIRS]`|Archive directories with fast compression. All directories by default. 
 `archive_check [FILES]`|Check archives integrity. Checks all archives by default. 
 `archive_prune [NAME]`|Delete old versions of archives. All archives by default. 
-`unarchive [FILES]`|Extract previously created archive with checksum validation. 
-`archive_name [ARCHIVE] [NAME]`|Rename archives. If no name specified, it simplifies archive's name. If no archives specified, apply to all archives. 
-`archive_convert`|Convert old archives to a new format. *TODO: remove me after some time when there won't be any old archives.* 
 `archive_rm [FILES]`|Delete specified or all archive files. 
+`archive_xz [FILES]`|Recompress previously created archive_fast with better compression. 
+`archive_name [ARCHIVE] [NAME]`|Rename archives. If no name specified, it simplifies archive's name. If no archives specified, apply to all archives. 
+`unarchive [FILES]`|Extract previously created archive with checksum validation. 
 
 ## Battery.
 
@@ -43,6 +43,8 @@ Command|Description
 `bootstrap_texlive`|Install TeXLive. 
 `bootstrap_grub`|Install grub theme. 
 `bootstrap_ffmpeg`|Install ffmpeg. 
+`bootstrap_editorconfig`|Install Editorconfig file (with tabs) in current directory. 
+`bootstrap_editorconfig_space [AMOUNT]`|Install Editorconfig file (with specified spaces, 8 by default) in current directory. 
 
 ## Cd.
 
@@ -192,6 +194,13 @@ Command|Description
 `gg <REPO>`|Get my git repo. 
 `gdc <COMMITHASH>`|See diff for a specific commit. 
 
+## Group.
+
+Command|Description
+---|---
+`group_ext [FILES]`|Group files by extension. 
+`group_year [FILES]`|Group files and dirs by year. 
+
 ## Help.
 
 Command|Description
@@ -257,6 +266,7 @@ Command|Description
 ---|---
 `parse_simplify <STRING>`|Parse data and output simplified format. 
 `parse_camel <STRING>`|Parse to CamelCase. 
+`parse_snake <STRING>`|Parse to snake_case. 
 `parse_alnum <STRING>`|Parse data keeping only alphanumeric characters. 
 
 ## Permissions.