Re: [Dar-support] version 2.5.14 backup script failure in opensuse leap 15.3

[Graham C. <g+...@co...>]

On 15/12/2021 16:11, Aardric via Dar-support wrote:
> 
> 
> On 2021-12-15 2:08 a.m., Graham Cobb wrote:
>> On 15/12/2021 04:21, Aardric via Dar-support wrote:
>>> Hail,
>>>     A tried and true (over a decade) incremental back up bash script
>>> failed after an o/s upgrade (opensuse leap 15.3). It is an old distro
>>> package; dar version 2.5.14.
>>> The offending lines:
>>> -va \
>>> -K aes256:
>>> -* 50000 \
>>> -J aes256:
>>>
>>> produced error:
>>> Data corruption may have occurred, cannot decrypt data
>>> ./dar_I211214d: line 43: -*: command not found
>>
>> If the script was not previously producing the last error shown above
>> then ***someone*** has recently changed it.
>>
>> What you show does not appear to be an extract from a valid bash
>> script!! Hint: the backslash is missing from the end of the line
>> starting -K. Also, unless you have set noglob, you almost certainly want
>> to put -* in quotes. I suggest you get someone who knows bash to take a
>> look. I am guessing the missing continuation, causing the -* and -J
>> options to be ignored, is also causing the first error messsage.
>>
>>> The archive has tested OK with dar -t.
>>> Something obvious?
>>
>> Yes, see above.
>>
> 
> I should clarify a couple of points.
> the missing backslashes cause the script to prompt me to enter a
> password. These scripts are usually run with the password embedded as "
> :some_password \" and the results are the same. 

So, you are saying that the script HAS been edited - to remove the
password? It looks like the continuation backslash was removed as well
when the password was removed.

The error message from the shell is pretty clear:

./dar_I211214d: line 43: -*: command not found

The shell is interpreting '-*' as a command, not as a continuation of
the previous command. I think you need a \ at the end of the line before.

Once you get rid of that shell error, you can start to track down if
there is an actual dar problem.