Re: [BUG] ERR trap triggered twice when using 'command'

[Martijn Dekker]

Op 02-04-18 om 20:41 schreef Chet Ramey:
> Thanks for the report. This clearly falls under this clause
>
> "In every other respect, if command_name is not the name of a function, the
> effect of command (with no options) shall be the same as omitting command."
>
> in the Posix description of `command'. It should be a one-line fix.

Given that text, commands prefixed with 'command' maybe shouldn't appear 
twice in xtrace output either. (They don't in any other shell.)

$ bash -xc 'command true'
+ command true
+ true

$ dash -xc 'command true'
+ command true

$ ksh93 -xc 'command true'
+ command true

$ pdksh -xc 'command true'
+ command true

$ yash -xc 'command true'
+ command true

$ mksh -xc 'command true'
+ true

$ zsh -xc 'command true'
+zsh:1> true

Thanks,

- M.