\e[1;33m[\u@\h \w]$\e[0m

PROMPTING
       When executing interactively, bash displays the primary prompt PS1
       when  it  is ready to read a command, and the secondary prompt PS2
       when it needs more input to complete a command.  Bash allows these
       prompt  strings  to  be  customized by inserting a number of back-
       slash-escaped special characters that are decoded as follows:
              \a     an ASCII bell character (07)
              \d     the date in "Weekday Month Date" format (e.g.,  "Tue
                     May 26" )
 
 
[...]
 
              \\     a backslash
              \[     begin a sequence of non-printing  characters,  which
                     could  be  used to embed a terminal control sequence
                     into the prompt
              \]     end a sequence of non-printing characters
 
       The command number and the history number are  usually  different:
       the  history  number  of  a command is its position in the history
       list, which may include commands restored from  the  history  file
       (see  HISTORY  below), while the command number is the position in
       the  sequence  of  commands  executed  during  the  current  shell
       session.   After the string is decoded, it is expanded via parame-
       ter expansion, command  substitution,  arithmetic  expansion,  and
       quote removal, subject to the value of the promptvars shell option
       (see the description of the shopt command under SHELL BUILTIN COM-
       MANDS below).