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Hash the BASH - & other Shells eg Bourne, Korn, Z-Shell, C-Shell, TC-Shell


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#1 wizardfromoz

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Posted 28 September 2014 - 01:29 AM

From the Oxford Dictionary -

 

IkOUPHw.png

 

In starting this Topic, I have a vested interest in the input. Given the circumstances of the last few days, with the Shellshock Bug, I am as interested as anyone in safeguarding my OS, my data, yadayada.

 

It is my hope that Members of the BC Community more experienced than I with Linux can take the time to provide input on their experiences with not only the Bash, but with any of the others listed or more.

 

I am open to comparisons also, and experiences, therefrom, devotees of MS-DOS, users from Macintosh, and other OSes, on these Unix/Linux CLIs (Command Line Interpreters).

 

But no fighting please. And try to stay in-topic. I had thought of putting this in a General Interest category, but I would really like a lot of Linux-specific responses, hence it being here.

 

Before I go any further, might I commend to you NickAu1's Shellshock Topic, found here. It was on Forum even before Forum Office-holders could respond. Kudos, Nick!

 

I am, as aren't we all?, interested in the security of the shells used, but also in their robustness, and their flexibility in providing functionality even above and beyond those supplied under a GUI solution. Not to mention retro aspects, like running old games, apps &c.

 

To give you an example and throw the ball into court:

 

From 1990 on, I was if not fluent, then very well-versed in MS-DOS, from v3.0 to v6.22. One of the most usable DOS commands I have ever found was called setver. With it, I could trick my PC into thinking that old software was current software, and thus extend the life of my favourites through a number of versions of Windows. This command was a precursor to what we now know as Compatibility Mode, the latter of which has been considerably neutered since the days of which I speak, due to the Microsoft juggernaut wanting us to upgrade (spend more), use Microsoft software (spend more), get more memory (spend more), upgrade cpu's via Intel (spend more), &c.

 

OK, enough from me, for now

 

the wizardfromoz



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#2 wizardfromoz

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Posted 13 November 2014 - 10:30 PM

Lightning strike Tuesday night took out part of our local telephone exchange, and so the district has had no Internet for nearly three days until a few minutes ago, I have been going bananas.

 

This weekend, I am going to be (seeking to) contacting Developers and Maintainers of some of the alternative shells listed in the Topic title.

 

I will be focussing on two (2) aspects, primarily:

 

  1. Similarities and differences between the various alternatives, with regard to scripting capabilities, ease of use, syntax differences, enhancements over the overs, &c. Scripting is one of my interests, currently, as you can see from here, #68 onwards.
  2. A compare and review on security and response to security flaws uncovered - the most likely asked about being susceptibility to bugs such as September's Shell Shock aka Bash Bug, and response thereto.

Many of the alternative shells share the same parentage/grandparentage, stemming from the original Shell, and the Bourne Shell, so I would pleasantly surprised to learn that the same 20-year-old flaw that was uncovered with The Bash did not have some impact.

 

We'll see,and I will keep you posted.

 

Later

 

:wizardball: Wizard



#3 wizardfromoz

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Posted 04 December 2014 - 03:31 AM

Learned only today that David Korn, founder of the Korn Shell in the mid-1980s, was "released" from his work with AT&T Bell Laboratories in 2013, so may have to look a little closer to get a contact for him, as well as establish whether he is still the maintainer of Korn.
 
More to come, soon, I hope
 
:wizardball: Wizard

Edited by Animal, 19 December 2014 - 04:40 PM.
At the request of the OP this thread now closed.





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