[Info-vax] Unix and DCL shells

[bill]

On 1/8/2024 3:10 PM, chrisq wrote:
> On 1/8/24 19:02, mjos_examine wrote:
>> On 2024-01-08 9:38 a.m., Arne Vajhøj wrote:
>>>> On 2024-01-08 9:21 a.m., Simon Clubley wrote:
>>>> >> Synchronised permanent storage of command history across sessions.
>>>> Supports
>>>> using multiple sessions at the same time and only writes the changes 
>>>> from
>>>> that session to the history file.
>>>
>>> I usually just write a COM file if I want to preserve my commands.
>>>
>>> But other may like the history you propose.
>>
>> I have to agree that being able to up-arrow through commands done 
>> during my last session, whether 5 minutes, or 5 days, or 5 months 
>> later, can be very useful and convenient.
>>
>> Couple that with the sister-feature of being able to back-scroll 
>> through all the terminal output from the last session, and now you are 
>> really talking useful and convenient.
>>
>>
>>
>>
> 
> One of the most irritating things about working on terminal
> based systems was the lack of command line recall. To be fair
> though, early unix systems with csh or sh lacked that as well.

csh has terminal command line recall.  I use it all the time.
csh is still my favorite shell.

I really thought DCL had it,too.  DCL in RSTS/E V10.1L does.

> Solution here was to select tcsh, which did have command line recall
> capability, even back in the early 1990's
> 
> Not a problem now, bash, csh and perhaps others. all support command
> line recall, with cmdline buffer length a terminal setup parameter.
> history (aliased h), shows the whole list, with !<line number>, 
> selecting and running any item.
> 
> Can be a steep learning curve, and easily forgotten without use,
> but so much workflow power in the unix shell...
> 

bill