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From: Geoff Clare <geoff@clare.See-My-Signature.invalid>
Newsgroups: comp.unix.shell
Subject: Re: [ksh93] defunct 'fc' command?
Date: Tue, 2 Jul 2024 13:50:29 +0100
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Janis Papanagnou wrote:

> On 01.07.2024 15:00, Geoff Clare wrote:
>> 
>> If you just want the commands executed, you can specify an editor
>> that does nothing:
>> 
>> fc -e true 1013 1015
>> fc -e : 1013 1015
> 
> This is a nice code pattern.
> 
>> 
>> Or, if you only want to execute one command, you can use -s (without
>> specifying a substitution).
> 
> I had tried this before and got an inconsistent error message (-e
> instead of -s) when [inappropriately] trying for a range
> 
> $ fc -s 1071 1073
> ksh: fc: -e - requires single argument
> 
> so I haven't followed that path further.

Yes, you can't give a range with -s (which is why I wrote "if you only
want to execute one command" above).

Looks like ksh implements -s by pretending that "-e -" was specified,
but the output from "--help" implies the relationship is the other way
round:

OPTIONS
  -e editor       editor specifies the editor to use to edit the history
                  command. A value of - for editor is equivalent to
                  specifying the -s option.

It would make more sense for the code to do it that way too, since -s is
in POSIX but "-e -" isn't.

-- 
Geoff Clare <netnews@gclare.org.uk>