Re: [ksh93] defunct 'fc' command?

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>