Re: [bug-gawk] Iterate over folders/files, suming sizes until limit

[arnold]

Indeed, the point of bug-gawk is more to help you understand how
awk/gawk works than to solve your problems for you.

The folks in comp.lang.awk may be more willing to help you
understand how to write such a program.

Or, as suggested, pulling out the gawk book and rereading it so
that you can improve your own skill set would be a good way to 
go.

Best of luck,

Arnold

Wolfgang Laun <address@hidden> wrote:

> If you are inviting tenders: could you please give us an address to which
> we can submit an offer?
>
> If you are not inviting tenders, I suggest that you derust your skills and
> have a go at it, yourself.
>
> Good luck
> -W
>
> On Sun, 23 Jun 2019 at 18:10, Roger <address@hidden> wrote:
>
> > Well, I read the AWK/GAWK book ~10 years ago, and now have my first
> > official
> > use for AWK!  However, it's now Summer and am significantly rusty with
> > skills.
> > Since this is the only mailing list, and the description states, "... and
> > everything else", I'll post my inquiry here.
> >
> > Summary: Need to list files/folders for recording to DVD/BD-R media, with
> > a one
> > line list of folders/files for passing to growisofs or mkisofs, limiting
> > to
> > media size.  (I'm really surprised nobody has something remotely
> > completed,
> > seemingly everyone rely upon the graphical front-ends! The folders contain
> > multiple surveillance audio/video files.)
> >
> > Steps: Iterate over the current contents of a folder using "/bin/du", at a
> > specified limit (eg. 46.5GB for 50GB BD-R media, adding the folder sizes
> > until
> > accumulated size is ~46.5GB) print a one line list of folders (for passing
> > manually to growisofs), then continue repeating the previous commands
> > until no
> > more folders/files.
> >
> > This sounds like a simple and desired (database field sum) task for AWK,
> > but
> > likely requiring data from "du".
> >
> > The initial output will likely be:
> >
> > "./20170711 ./20170712 ./20170713 ./20170714",
> >
> > However I need to further format to mkisofs "-graft-points" feature:
> >
> > "20170711=./20170711  20170712=./20170712 20170713=./20170713
> > 20170714=20170714/"
> >
> > Just need a little hand holding here as my skills are extremely rusty.
> >
> > I can imagine a slightly modified AWK program using "/bin/ls" for only
> > files
> > instead of "/bin/du" for just folders, or both.  I already have part of my
> > problems solved, using "du -kh --max-depth=1 |sort -k 2" to find folder
> > size
> > and sort according to the year_month_dated folder names.
> >
> > I could likely easily whip-up one of my excellently written Bash scripts
> > with
> > "/bin/du" outputted temporary file to the /tmp folder without bugging
> > anybody,
> > but figure it's probably best/proper to do this all in AWK/GAWK script and
> > have
> > something posted for public use.
> >
> > Roger