[ale] Bash Scripts: When to break them into files

Michael Potter pottmi at gmail.com
Tue Apr 27 09:49:06 EDT 2021

We can have a zoom meeting sometime and I can do my bash presentation if
there is interest.

On Tue, Apr 27, 2021 at 8:04 AM Jim Kinney via Ale <ale at ale.org> wrote:

> If a chunk of a script is useful by itself, I'll make it it's own file and
> just call it. I'm not concerned about efficiency of resources so calling a
> subshell for an external script is not a concern. Grep, sed, and awk are
> often launched many, many times in sequence anyway so what's another 10-40
> subshells? :-)
> An example:
> I have one script that gathers the names of all nodes in the cluster. That
> can be called as input to push config changes or pull current settings or
> data.
> The multi-cluster version calls the same named script as above for each
> cluster, gathered using different, cluster-specific methods, to perform
> operations across all nodes in all clusters.
> There are several, tiny, modifier scripts that can be selectively piped
> through for queue and node, node only, or queue only selection.
> The modifier scripts were split out so I can reuse that functionality in
> the myriad ad hoc scripts I write daily for poke, prod, and general
> break-fix operations.
> On April 26, 2021 10:11:43 PM EDT, David Jackson via Ale <ale at ale.org>
> wrote:
>> Hey Everyone,
>> When do you guys feel that your bash scripts have gotten too long?  When
>> do they need to be broken out into individual files, and when does doing so
>> make them less easy to maintain or follow?
>> Also, how do you organize your scripts so they are easy for newcomers to
>> understand?
>> Your thoughts are appreciated!
>> Thanks!
>> Dave
> --
> Computers amplify human error
> Super computers are really cool
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