"G. Matthew Rice" <[EMAIL PROTECTED]> writes:
> I would say minimally:
>
> 1. knowledge of .bash_history
>
> how many times have you accidentally typed your password on the
> command line and then had to edit it out of the history file? I've lost
> count for myself :)
>
> 2. history command
>
> natch - it's already listed
>
> and probably:
>
> 3. !n
>
> rerunning the nth command in the history
>
> 4. !-n
>
> rerunning the nth previous command
I think I'd like to vote for adding:
5. !<string>
rerunning the previous command that started with <string>
I had top running all night to prevent a ssh session from hanging and, after
doing some commands this morning, typed '!top' without even thinking.
No comments from anyone on this (even Anselm and he brought it up ;)).
Does anyone think that this is far enough (I actually prefer #5 over #3 and
#4 for LPIC-1)?
Your last chance to say something is coming up because I have to write this up
for the addendum. Hopefully, everyone's finished their <insert favourite
winter holiday> shopping by now :)
Regards,
--matt
>
>
> I'll leave the rest up to others to help with the clarification.
>
> I think what you showed below is sick ;)
>
> I'm even on the fence with my old favourite: ^ (the quick sub character)
>
> Also, I don't think we need to add (not really history specific) the
> emacs/vi/etc keybindings for editting on the command line.
>
> Comments? Additional really useful history related topics?
>
> Remember, this is junior level and history is just one part of the 4
> weight objective.
>
> Regards,
> --matt
>
>
> On Fri, 2008-12-05 at 15:31 +0100, Anselm Lingnau wrote:
> > Here's one that makes me wonder: How far does »Use and edit command
> > history«
> > in the new-style objective 103.1 extend into the territory of arcane
> > history
> > substitutions, i.e., do LPIC-1 candidates have to be able to parse and/or
> > produce things like
> >
> > $ echo !?foo?$:t:s/bar/baz/
> >
> > ? If not, where does objective 103.1 stop?
> >
> > (Just in case you're wondering: This will look for the most recent command
> > line in the history containing the string »foo«, pick up the last word of
> > that line, discard everything from that word except for the last filename
> > component, and return that with the string »bar« replaced by »baz«. And
> > just
> > for the record, I don't use such things myself as my poor brain cannot
> > handle
> > them as a matter of course.)
> >
> > Anselm
>
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>
--
g. matthew rice <[EMAIL PROTECTED]> starnix care, toronto, ontario, ca
phone: 647.722.5301 x242 gpg id: EF9AAD20
http://www.starnix.com professional linux services & products
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