Change history size and add persistent history tool

run/.bashrc

@@ -54,8 +54,11 @@ HISTCONTROL=ignoreboth
 shopt -s histappend
 
 # for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
-HISTSIZE=1000
-HISTFILESIZE=2000
+HISTSIZE=-1
+HISTFILESIZE=-1
+
+# History Timestamps
+HISTTIMEFORMAT="%d/%m/%y %T "
 
 # make less more friendly for non-text input files, see lesspipe(1)
 [ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
@@ -150,3 +153,20 @@ if [ -f `which powerline-daemon` ]; then
   POWERLINE_BASH_SELECT=1
   . /usr/share/powerline/bindings/bash/powerline.sh
 fi
+
+# Persistent Bash History to alternative dotfile
+log_bash_persistent_history()
+{
+  [[
+    $(history 1) =~ ^\ *[0-9]+\ +([^\ ]+\ [^\ ]+)\ +(.*)$
+  ]]
+  local date_part="${BASH_REMATCH[1]}"
+  local command_part="${BASH_REMATCH[2]}"
+  if [ "$command_part" != "$PERSISTENT_HISTORY_LAST" ]
+  then
+    echo $date_part "|" "$command_part" >> ~/.persistent_history
+    export PERSISTENT_HISTORY_LAST="$command_part"
+  fi
+}
+
+log_bash_persistent_history