big update of PS1

bashrc

@@ -616,10 +616,9 @@ then
     fi
     __my_cdef="\[\e[0m\]"
 fi
-_PS1="\
-${__my_c4}:: ${__my_cdef}[${__my_c1}\w/${__my_cdef}<${__my_c3}\${OLDPWD}${__my_cdef}]\$(__my_ps1_scale)\$(__my_ps1_tmux)\$(__my_ps1_git)\$(__my_ps1_bttry)\$(__my_ps1_ipaddr)\$(__my_ps1_moc)\n\
-${__my_c4}:: ${__my_c2}\u@\H${__my_cdef} \D{%a, %d %b %Y %T %z} ${SHELL} \V\n\
-${__my_c4}:: ${__my_cdef}shlv:${SHLVL} cnum:\# jobs:\j last:\$? \$ "
+_PS1="$(__my_ps1_save_last)\
+${__my_c4}:: ${__my_cdef}[${__my_c2}\u@\H${__my_cdef}:${__my_c1}\w/${__my_cdef}]\$(__my_ps1_scale)\$(__my_ps1_tmux)\$(__my_ps1_git)\$(__my_ps1_bttry)\$(__my_ps1_ipaddr)\$(__my_ps1_moc)\n\
+${__my_c4}:: ${__my_cdef}l${SHLVL}n\#j\js\$? \D{%T} \$ "
 PS1=$_PS1
 
 __my_set_title(){