"pct listsnapshot" strange output

[greg]

Greetings
I have a cleanup script based on "pct listsnapshot" which stopped working a while ago.
While running manually, I found this output:

`-> daily_20181123              2018-11-23 04:30:07     no-description
  `-> daily_20181124            2018-11-24 04:30:07     no-description
    `-> daily_20181125          2018-11-25 04:30:07     no-description
      `-> daily_20181126        2018-11-26 04:30:07     no-description

and then

Deep recursion on anonymous subroutine at /usr/share/perl5/PVE/GuestHelpers.pm line 165.

Is it on purpose that the output starts with this weird single quote? for some reason it seems to break sed & awk. Is it possible to have a more "flat" ouput?

Thanks in advance

Regards

 

[fiona]

Hi,
approximately how many snapshots do you have? Seems like the function in question should be refactored into a loop, to not be recursive.

Regarding the output, it's supposed to represent part of the arrow. You need to escape/quote that symbol before passing it to another command.

You can also use

pvesh get /nodes/<node>/lxc/<ID>/snapshot

instead. See man pvesh for the possible output formats and the --noborder option. Note that you'll need to sort them by snaptime though, and for containers with too many snapshots this might not work until that Deep recursion error is fixed.

 

[greg]

Thanks for you answer I indeed have a huge amount of snapshots, since my script broke a while ago. This weekend I ended up with this:

pct listsnapshot $ctID| grep "daily_$year" 2>/dev/null | tr -cs '[[:digit:]]\n' ' ' |awk '{print $1}' > zfs_list_$ctID_$year.lst

(visually check the output file, then)

cat zfs_list_$ctID_$year.lst | xargs -n1 -I {} sh -c "echo -e \" \e[33mCT $ctID\e[39m : {} \"; pct unlock $ctID; pct delsnapshot $ctID daily_{} || true"

Not really clean but it's working for now.
I'll check the command you quoted, thanks a lot!

Regards