Weird behaviour on echo

[Andy Pieters]

Thanks all for your replies and explanations.


With kind regards


Andy


On Monday 18 July 2005 07:35, Jeff Vian wrote:
> On Mon, 2005-07-18 at 00:56 +0200, Andy Pieters wrote:
> > Hi all
> >
> > Consider this
> >
> > ~]$ echo "Test!"
> > bash: !": event not found
> > ~] $ echo "Test"!
> > Test!
> > ~] $ echo 'Test!'
> > Test!
> > ~] $ echo Test!
> > Test!
> >
> > I haven't heard anything about expansion of the '!' character, have you?
>
> The ! is a special character in bash in some circumstances.  The "" can
> give it the special meaning.
>
> >From my documentation on bash,  !n references a previous command (the
>
> nth command),  it also allows use of characters to list previously
> issued (history) commands that start with that character(s)
> an example of the first use
>     [jeff at eye_gore ~]$ echo !12
>     echo mkdir temp2
>     mkdir temp2
>
> and the second
>    [jeff at eye_gore ~]$ echo !n
>    echo ncftp 192.168.2.10
>    ncftp 192.168.2.10
>
> So in that context the "!" structure forces it to be interpreted with a
> null argument and thus not a valid event to be referenced.
>
>    [jeff at eye_gore ~]$ echo "!"
>    bash: !: event not found
> is in a slightly different category though
>
> > With kind regards
> >
> >
> > Andy
> >
> >
> > --
> > fedora-list mailing list
> > fedora-list at redhat.com
> > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list

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