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Re: the fine art of error chek'n

From: Chris F.A. Johnson
Subject: Re: the fine art of error chek'n
Date: Thu, 7 May 2020 12:02:25 -0400 (EDT)
User-agent: Alpine 2.21 (DEB 202 2017-01-01)

On Thu, 7 May 2020, address@hidden wrote:

i have written simple programs use'n bash for many years
i most always use something like

if (($? != 0)); then echo failed; fi

other than readability what is the difference in the above and

false || echo failed

I would test the command directly:

if ! false  ## or whatever you are actually testing
 echo failed

   Chris F.A. Johnson                         <>
   =========================== Author: ===============================
   Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
   Pro Bash Programming: Scripting the GNU/Linux shell (2009, Apress)

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