diff --git a/.bashrc b/.bashrc
index a9e49ff..d29b3f4 100644
--- a/.bashrc
+++ b/.bashrc
@@ -7,25 +7,30 @@ case $- in
     *i*) ;;
       *) return;;
 esac
+#ukladanie historie ze vsech session okamzite po odeslani prikazu...
+PROMPT_COMMAND="history -n;history -a; $PROMPT_COMMAND"
 
 # don't put duplicate lines or lines starting with space in the history.
 # See bash(1) for more options
-HISTCONTROL=ignoreboth
+# erasedups - maže predchádzajúce duplicity
+# ignoredups - ignoruje duplicity
+# ignorespace - ignoruje príkazy začínajúce medzerou a \t
+# ignoreboth - zástup za ignoredups aj ignorespace
+#HISTCONTROL=ignoreboth
+HISTCONTROL=ignoreboth:erasedups
 
 # append to the history file, don't overwrite it
 #shopt -s histappend
 #### moja voľba - zobrazí príkaz predtým ako ho vykoná ak použijem !! alebo !?
 shopt -s histverify
 
-#ukladanie historie ze vsech session okamzite po odeslani prikazu...
-PROMPT_COMMAND="history -a;history -n; $PROMPT_COMMAND"
-
 # for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
 HISTSIZE=10000
 HISTFILESIZE=50000
 
 # moje vložené ignoruje príkazy
 HISTIGNORE=yy*:jw:.:..*:poweroff:reboot:exit
+#HISTIGNORE=&: :yy*:jw:.:..*:poweroff:reboot:exit
 
 # check the window size after each command and, if necessary,
 # update the values of LINES and COLUMNS.