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From: owl <owl@rooftop.invalid>
Newsgroups: comp.os.linux.misc,alt.os.linux
Subject: Re: Linux Command-Line Editors Vulnerable to High-Severity Bug
Date: Wed, 19 Jun 2019 19:51:06 +0000 (UTC)
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In comp.os.linux.misc Carlos E.R. <robin_listas@es.invalid> wrote:
> On 19/06/2019 20.47, Georges wrote:
>> Le 19/06/2019 à 20:32, Tauno Voipio a écrit :
>>> On 19.6.19 11:55, Georges wrote:
>>>> Le 19/06/2019 à 10:20, Carlos E.R. a écrit :
> 
> ...
> 
>>>> if you teach students, you struggle between time and contents (what you
>>>> can teach on a 20h course for instance), so 'vi' is a good choice
>>>> because it's widely used... and simple... once you get the philosophy ;)
>>>>
>>>
>>> If you really want to go backward in time, you should use ed, and no
>>> newer derivatives like ex and vi with family.
>>>
>>> My favourite in primitive editors is nano.
>>>
>> 
>> Try this with nano... ;)
>> 
>> Let's consider a file with 2 columns (or more of course), separated with
>> <space> or <tab> or whatever you want, you need to invert columns :
>> 
>> aaaaa bbbbb
>> aaaaa bbbbb
>> 
>> :1,$s/^\(.*\) \(.*\)$/\2 \1/
>> 
>> bbbbb aaaaa
>> bbbbb aaaaa
>> 
>> ;)
>> 
> 
> Jstar (joe) can do that.  Switch to vertical block mode, select the
> rectangle on the left, move to the right.
> 

Shuffling many columns would seem to be a pain that way.