linux - What is the actual signal behind ERR -

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I have read in several places (including SO) that -e is considered "bad form "And it is incredible to get out of a script at any error, it seems to be a better way to handle the errors that trap is being used like: 

 < Code> trap "echo was an error; exit 1;" ERR   
 I think what signals  ERR  can not really be found in the pages of human beings? I'm assuming this  SIGQUIT  but I'm sure can not get it.  
  man 7 signals   
 The only normal sign is that you would expect  SIGTERM SIGQUIT SIGINT , etc.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 ex: "If a net on ARR is set, then the shell gets out. "  
     
  The man is the net trap  makes reference to the  ERR  in it but does not define it from what I have seen.  
 What is the real signal behind the shortcut  ERR ? (Normal signals are shown in  man 7 signal .)  
 I would like to trap the actual signal name instead of the shortcodes, although I know they will produce the same result (After catching any errors from a command in a script, throw them onto the handler).   
 
 
  mesh signal  signal specifications  ERR   
  ERR  is one of the signal specifications implemented by  internally. . [Note 1] If  trap ERR  is enabled, then bash will call the same handler in the same case because it exits because  set -e  was enabled ( As a result, it is no longer "reliable" then  set -e  but it is much more flexible.)  
 Other special  trap  names that do Do not correspond to any signal  remove ,  debug  and  return .  
  Help Trap  Explain the meaning of these signal specifications.  
 
  Note:   
     
  1.  Actually, all the signal specifications to  Bash , but most of them By implementing signal signal by binding  bash  and executing signal handler. The execution of special ones signal handlers is included.

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