Group : Add current year collector.

.config/bash/module/Group.sh

@@ -36,3 +36,22 @@ function group_year() {
 
 	_iterate_targets process ${targets[@]}
 }
+
+# Copy files from current year to the named dir.
+function group_year_current() {
+	local IFS=$'\n'
+	local targets=(${@})
+	[[ "${targets}" = "" ]] && targets=($(ls))
+
+	local today="$(date +%Y)"
+	mkdir ${today} 2> /dev/null
+
+	process() {
+		local year=$(stat --format=%y ${target})
+		year=${year%%-*}
+
+		[[ "${year}" = "${today}" ]] && cp -- ${target} ./${today}/
+	}
+
+	_iterate_targets process ${targets[@]}
+}

.doc/Bash.md

@@ -211,6 +211,7 @@ Command|Description
 ---|---
 `group_ext [FILES]`|Group files by extension. 
 `group_year [FILES]`|Group files and dirs by year. 
+`group_year_current`|Copy files from current year to the named dir. 
 
 ## Help.
 
@@ -267,9 +268,10 @@ Command|Description
 `nix_unstable`|Switch to Unstable branch. 
 `nix_unstable_small`|Switch to Small Unstable branch (for server). 
 `nix_channel`|Display current channel. 
-`nix_update`|Update system (rebuild). 
-`nix_upgrade`|Upgrade system. 
+`nix_update [HOSTNAME]`|Update system (rebuild). Optionally force the hostname. 
+`nix_upgrade [HOSTNAME]`|Upgrade system. Applies after reboot. Optionally force the hostname. 
 `nix_clean`|Free up root space. 
+`nix_shell`|Spawn shell with nix environment, like LD support. 
 `shell`|Spawn temporary shell. 
 
 ## Notify.