set history -a in PROMPT_COMMAND when using __git_ps1. add some functions to change window titles and revert after using ssh/su. add an emoji showing a host is a _remote_ host when using ssh to connect to another machine.

.bashrc

@@ -65,7 +65,10 @@ else
     GIT_PS1_SHOWUPSTREAM="auto"
     GIT_PS1_SHOWCOLORHINTS=1
     GIT_PS1_HIDE_IF_PWD_IGNORED=1
-    PROMPT_COMMAND='__git_ps1 "\[\033[01;32m\][\u@\h\[\033[01;34m\] \w\[\033[01;32m\]]\[\033[00m\]" "\\\$ "'
+    if [[ -n $SSH_CLIENT ]] ; then
+      SSH_CHAR="📡"
+    fi
+    PROMPT_COMMAND='history -a; __git_ps1 "\[\033[01;32m\][\u@\h${SSH_CHAR}\[\033[01;34m\] \w\[\033[01;32m\]]\[\033[00m\]" "\\\$ "'
   else
     PS1='\[\033[01;32m\][\u@\h\[\033[01;34m\] \w\[\033[01;32m\]]\[\033[00m\]\$ '
   fi
@@ -110,4 +113,24 @@ ex ()
   fi
 }
 
+# change the title of the current window or tab
+title()
+{
+   echo -ne "\033]0;$*\007"
+}
+
+ssh()
+{
+  echo -ne '\e[22t'
+  /usr/bin/ssh "$@"
+  echo -ne '\e[23t'
+}
+
+su()
+{
+  echo -ne '\e[22t'
+  /bin/su "$@"
+  echo -ne '\e[23t'
+}
+
 [[ -e $HOME/.bash.local ]] && . $HOME/.bash.local || true