[EdLUG] Bash Scripts

[Magnus Hagdorn]

Hmm, I tend to use bash for really simple stuff. for anything more
involved I endup using python....

happy new year




On Tue, 2022-01-04 at 07:53 +0000, Tai Kedzierski wrote:
> I set out to solve the same (or similar) use-case some time ago.
> 
> https://gitlab.com/taikedz/bash-builder
> https://gitlab.com/taikedz/bash-libs
> 
> I implemented the above micro build suite all in bash. I like to
> think I
> know more tricks than the average bash scripter, and that my
> scripting is
> much cleaner and more organised
> 
> https://dev.to/taikedz/your-bash-scripts-are-rubbish-use-another-language-5dh7
> 
> Then again, that may simply be heady, megalomaniac self-delusion.
> 
> Use linked resources at your own risk ;-)
> 
> -- tk
> 
> // Sent from a mobile device. Typos and brevity may transpire.
> 
> On Mon, 3 Jan 2022, 13:35 Keith Wyse, <kwyse3436 at gmail.com> wrote:
> 
> > Hi all;
> > I hope your New Year is going well so far.
> > Recently I have been doing some Bash scripting on my Ubuntu 21.04
> > desktop,
> > and found I was repeating similar commands in different scripts.
> > Though I have been using Bash for quite a while, I'm no expert and
> > am
> > still learning all the time.
> > 
> > I found the 'source' command which brings in another file as if it
> > were
> > part of the script, and have been using that in a similar way to a
> > library
> > in a programming language.
> > I have built a few of these templates as I call them, and then also
> > combined templates into profiles; a script that only needs a log
> > file can
> > source profile.logfile, a different script which needs to check
> > sudo
> > permissions sources profile.all. Each of these pull in just enough
> > for the
> > actions to be done.
> > Also at the top of each template/profile I have added a commented
> > out
> > section which shows the normal use, so that this can easily be
> > copied to a
> > script being written.
> > 
> > Then I realised that I have some scripts which call other scripts,
> > and
> > pulling in templates/profiles in the called script may change set
> > variables. To handle that I added an 'if' condition to test if the
> > variable
> > is already set. And at the end I have added another 'if' to test if
> > the
> > script is the top level, only then is the variable unset in the
> > tidy-up.
> > 
> > Further I have added functions which test if the set variable is
> > correct
> > and I try to have a function 'template.valid' in each template
> > which makes
> > all necessary checks on the variable.
> > Yes this might seem to be unnecessarily pedantic, but it is a
> > learning
> > exercise as well as functional.
> > 
> > Linked is a small file template.cmndname which simply sets a
> > variable
> > according to what script is being executed. In essence it's only a
> > single
> > line, but the template goes further & checks it is valid. This
> > template is
> > normally set in each script whether or not it is called from
> > another
> > script, as I use this in messages.
> > 
> > Let me know if the link works okay.
> > Interested in people's comments & suggestions.
> > 
> > Cheers
> > Keith
> > 
> > 
> > https://drive.google.com/file/d/1H6jc5lYwLxmRaDU7FGNHm9dDJXpYS-78/view?usp=sharing
> > --
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> >