[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: weird behaviour of quotes in dash variable assignments




On 2020-09-21 10:30, David Wright wrote:
On Mon 21 Sep 2020 at 08:18:52 (-0400), Greg Wooledge wrote:
On Mon, Sep 21, 2020 at 07:55:45AM -0400, Cindy Sue Causey wrote:
'…' and "…" are known as neutral, vertical, straight, typewriter,
dumb, or ASCII quotation marks.

‘…’ and “…” are known as typographic, curly, curved, book, or smart
quotation marks.
Yes.  This is one of the possible causes for the behavior the OP was
reporting.  But if this is true, then it reveals that they were lying
when they claimed that the scripts were the same on both servers.

[…]

To beat a dead horse some more, if *this* was the OP's problem, then they
told multiple lies about it.  They did not paste the actual failing line
from the failing script (probably retyped it instead), and they did not
ACTUALLY COMPARE the two scripts to see whether they were different,
instead simply ASSUMING that the two scripts were identical, even though
they very clearly weren't.

An actual troubleshooting would have done something like using md5sum
on the script on each machine, and pasting the md5sum commands (including
the full script pathname) and their output to the mailing list.  Openness.

Or, hell, even "ls -l /full/pathname" would probably have revealed that
the scripts were not the same SIZE.  That would also have shown immediately
that the scripts were not "the same".
I think we should apply Hanlon's razor rather than saying the OP lied.
After all, "compare" means diff or cmp to us, whereas many might just
use their eyeballs. And we all know that authors are the worst people
to check their own work. Proof-reading is a special skill.

Even their fix is poorly described. Did they just type the quotes back
in with an editor, in which case there's no guarantee that the scripts
are identical between machines, or did they transfer a working script
to the failing machine? The best line is save until last: "I certainly
didn't update anything on either server...". Well, yes, that's
*precisely* what you did: you updated the script.

Cheers,
David.

You are taking my quote out of context. I didn't change anything on the server to make the script start working. I updated the script to see if it would work after trying Greg's test. There were no program or setting updates on the server, and certainly nothing that updated dash. This is Debian/Stable we're talking about, after all.

Since it is a file server, there probably were changes to the files on its shares, but I'd hardly count that as an "update". Similarly, it was running cron jobs for backups and virus scans (unsuccessfully) but again I wouldn't call those "updates".



Reply to: