Path: ...!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: Geoff Clare <geoff@clare.See-My-Signature.invalid>
Newsgroups: comp.unix.shell
Subject: Re: [ksh93] defunct 'fc' command?
Date: Mon, 1 Jul 2024 14:00:13 +0100
Lines: 40
Message-ID: <trlalk-d5q.ln1@ID-313840.user.individual.net>
References: <v5trcn$10nuj$1@dont-email.me>
Reply-To: netnews@gclare.org.uk
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-Trace: individual.net MfpXSyQwHuXw8WpC665UhQHyRyehCarRk0OxVVCjirPAot8SS/
X-Orig-Path: ID-313840.user.individual.net!not-for-mail
Cancel-Lock: sha1:grpAfqfZQKy/yqO92kcgTj/ckRQ= sha256:wlSFLaSWVEpxcCJAm9Ts9Rwbk7XF2wDKzipp3T2c+Y4=
User-Agent: Pan/0.154 (Izium; 517acf4)
Bytes: 1935

Janis Papanagnou wrote:

> I noticed that 'fc' doesn't seem to work on my Limux platform (neither
> with ksh93u+ nor with ksh93u+m). Usually I use that built-in command
> only as 'fc -l' (to list the history entries), and omitting the '-l'
> should execute these commands. Alas, 'fc <from> <to>' doesn't work;
> for example
> 
> $ fc -l 1013 1015
> 1013	ls X
> 1014	ls Y
> 1015	ls Z
> $ fc 1013 1015
> 15
> ^C
> ?
> ^Z[1] + Stopped                  fc 1013 1015
> $ kill %%
> [1] + Terminated               fc 1013 1015
> 
> 
> Is that an issue in my environment (or on my platform), or a bug?

It's an issue with your expectation. By default, fc starts an editor.
Presumably you don't have FCEDIT set, as your output shows the default
editor (ed) was used; it was ed that wrote the "15" and the "?".

If you just want the commands executed, you can specify an editor
that does nothing:

fc -e true 1013 1015
fc -e : 1013 1015

Or, if you only want to execute one command, you can use -s (without
specifying a substitution).

This is all POSIX standard stuff.

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