nft - execute command without returning error

nft - execute command without returning error

[Daniel Huhardeaux]

Hello,

for instance, I want to delete a table which is not existing. Problem is 
that nft return an error and stop processing the script. It's the same 
for other commands like adding an already existing chain.

If I run all nft stuff in a bash script I can use eg

nft delete table mytable 2>/dev/null || true or
nft add chain mychain input { ... } 2>/dev/null || true

to get around.

With table, using add instead of create does the job. What are the 
solutions for others command like showned above ?
-- 
Daniel

Re: nft - execute command without returning error

[Daniel Huhardeaux]

Le 12/10/2019 à 22:32, Daniel Huhardeaux a écrit :
> Hello,
> 
> for instance, I want to delete a table which is not existing. Problem is 
> that nft return an error and stop processing the script. It's the same 
> for other commands like adding an already existing chain.

Sorry for this, I saw it's not true as in chain I can use add instead of 
create to avoid error.

To be clear, my goal is to use nft instead of bash to create rules: bash 
script is used to set automatically some values like ip/ipv6 addresses 
aso, echo them in a define include file and chain to nft script who will 
include this file and apply rules.

-- 
Daniel