update `.bashrc`

.bashrc

@@ -24,9 +24,6 @@ bind "set visible-stats on"
 
 # prompt
 PS1="\[\e[1m\]\u@\h\[\e[0m\]:\[\e[1;34m\]\w\[\e[0m\]\[\e[1m\]\$\[\e[0m\] "
-if [ -z $TERMUX_VERSION ]; then
-    PS1="\[\e[1m\]urosm@trento\[\e[0m\]:\[\e[1;34m\]\w\[\e[0m\]\[\e[1m\]\$\[\e[0m\] "
-fi
 
 # title
 PS1="\[\e]0;\u@\h:\w\a\]$PS1"
@@ -39,6 +36,13 @@ alias ls="ls --color=auto"
 alias ll="ls -AF1"
 alias lll="ls -AFlh"
 
+# history
+shopt -u histappend
+HISTSIZE=-1
+HISTFILESIZE=-1
+HISTIGNORE='exit:q:ls:ll:lll'
+HISTCONTROL='ignoreboth:erasedups'
+
 # bash completion
 if ! shopt -oq posix; then
 	if [ -f /usr/share/bash-completion/bash_completion ]; then