adding archive command + XDG_* environnment variables (not finished)

In its essence, the archive command does this :
  archive /tmp/TEST.png
  mv /tmp/2013-10-20--TEST.png

I follow here the principle from gmail that you should 98% of the time,
archiving is better of deleting.

XDG Base Directory Specification
http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html

Please review this patch, I'm not a real bash programmer.

aliases/available/general.aliases.bash

@@ -25,7 +25,6 @@ alias c='clear'
 alias k='clear'
 alias cls='clear'
 
-alias edit="$EDITOR"
 alias pager="$PAGER"
 
 alias q='exit'

lib/helpers.bash

@@ -353,3 +353,48 @@ all_groups ()
     cat $file | sort | uniq
     rm $file
 }
+edit () {
+	FILES=$1
+	if [ -z "$FILES" ] 
+	then
+		$EDITOR $HOME/.bash-it/custom/FILES
+	else
+		$EDITOR $FILES
+	fi
+}
+
+archive () {
+	FILE=$1
+	BASEFILE=$(basename "$FILE")
+	TODAY=$(date --rfc-3339=date) 
+	TARGET="$TODAY--$BASEFILE"
+
+	if [ -z "$FILE" ]  
+	then
+		echo "move a file  in the '$ARCHIVE' directory, timestamping it with $TODAY"
+		echo "Syntaxe : archive <file>" 
+		return 1
+	fi
+	if [ -d "$FILE" ]
+	then
+		echo "sorry, archive doesn't work for directories"
+		return 2
+	fi
+	if [ ! -r "$FILE" ]
+	then
+		echo "Cannot read  file '$FILE'" 
+		return 3
+	fi
+	if [ -z "$ARCHIVE" ] 
+	then
+		ARCHIVE=$HOME/archive
+	fi
+	if [ ! -r "$ARCHIVE" ] 
+	then
+		 mkdir -p "$ARCHIVE"
+	fi
+
+	echo "Archiving '$FILE' in '$ARCHIVE'"
+	/bin/mv -- "$FILE" "$ARCHIVE"/"$TARGET"
+}
+

template/bash_profile.template.bash

@@ -1,5 +1,19 @@
 #!/usr/bin/env bash
 
+# Set where your want to archive your files with the archive command
+export ARCHIVE=$HOME/archive # default
+
+# Set the XDG_* environnment variable
+# See http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+export XDG_DATA_HOME=$HOME/.local/share
+export XDG_CONFIG_HOME=$HOME/.config
+export XDG_CONFIG_DIRS=/etc/xdg
+export XDG_CACHE_HOME=$HOME/.cache
+# export XDG_RUNTIME_DIR=we won t set this for you, read the spec
+# export XDG_DATA_DIRS=we won t set this for you, read the spec
+# TODO : those directories should be created if they don't exist
+
+
 # Load RVM, if you are using it
 [[ -s $HOME/.rvm/scripts/rvm ]] && source $HOME/.rvm/scripts/rvm
 
@@ -39,5 +53,6 @@ export TODO="t"
 # https://github.com/xvzf/vcprompt
 #export VCPROMPT_EXECUTABLE=~/.vcprompt/bin/vcprompt
 
+
 # Load Bash It
 source $BASH_IT/bash_it.sh