how to return from bash function with a message? -

I have a function that calls a command, when the command fails, I have to resize a message and then signal failure .

EDIT: Sorry, I do not remember that if I had an attempt to do this, as other answers have said, then I may have made a mistake, so I am removing it .

This one works fine:

  function F () {command || Return 1}   
 But I will have to resign the message to indicate due to failure, so I tried to do it, even this function does not come back  
  function f () {command || (Echo "message" & amp; amp; amp; amp; amp;; refund1)}   
 Recommend the right way to do this.  
 
 
 
 In this case:  
  function F () {command | | (Resonant "message" and return 1)}   
 The brackets make a subsection, and therefore returning to the function instead of returning to that subsection to avoid it, instead Use  {}  (but note that you need the space around them and requires a semicolon before } ). Additionally, the use of the  function  keyword is non-standard Finally, it is conventional to send an error message to stderr instead of stdout. Here is the definition definition as follows:  
  F () {command || {Resonant "Message" & gt; & Amp; 2 & amp; Amp; Return 1; }}   
 I do not know why the  if ...  version does not work for you (this was done to me), as long as you have brackets Do not even use it.