Delete JunOS Configuration Statement

Deleting Statement from JunOS Configuration
Here example for deleting a statement from JunOS Configuration.  I use BGP configuration for example.

[edit]

admin@dailyconfig# delete protocols bgp

[edit]

admin@dailyconfig# show

[edit]

admin@dailyconfig#

 

Using Regular Expression to Delete Related Items from JunOS Configuration.

Example: 

Deleting Interfaces from the Configuration

Delete multiple T1 interfaces in the range from t1-0/0/0:0 through t1-0/0/0:23:

admin@dailyconfig# wildcard delete interfaces t1-0/0/0:.*

matched: t1-0/0/0:0

matched: t1-0/0/0:1

matched: t1-0/0/0:2

Delete 3 objects? [yes,no] (no) no

Deleting Routes from the Configuration

Delete static routes in the range from 172.0.0.0 to 172.255.0.0:

admin@dailyconfig# wildcard delete routing-options static route 172.*

matched: 172.16.0.0/12

matched: 172.16.14.0/24

matched: 172.16.100.0/24

matched: 172.16.128.0/19

matched: 172.16.160.0/24

matched: 172.17.12.0/23

matched: 172.17.24.0/23

matched: 172.17.28.0/23

...

Delete 13 objects? [yes,no] (no) 

 

Completely remove configuration.

admin@dailyconfig#load factory-default

But, it's good before doing complete erase configuration, to have a rescue config.

admin@dailyconfig#request system configuration rescue