Cisco – how to create a file in Cisco IOS

Cisco has a paper, Object Groups for ACLs, which includes a section called, Example Verifying Object Groups for ACLs:

Example Verifying Object Groups for ACLs

The following example shows how to display all object groups:

Router> enable
Router# show object-group
Network object group auth_proxy_acl_deny_dest
 host 209.165.200.235
Service object group auth_proxy_acl_deny_services
 tcp eq www
 tcp eq 443
Network object group auth_proxy_acl_permit_dest
 209.165.200.226 255.255.255.224
 209.165.200.227 255.255.255.224
 209.165.200.228 255.255.255.224
 209.165.200.229 255.255.255.224
 209.165.200.246 255.255.255.224
 209.165.200.230 255.255.255.224
 209.165.200.231 255.255.255.224
 209.165.200.232 255.255.255.224
 209.165.200.233 255.255.255.224
 209.165.200.234 255.255.255.224
Service object group auth_proxy_acl_permit_services
 tcp eq www
 tcp eq 443

The following example shows how to display information about specific object group-based ACLs:

Router# show ip access-list my_ogacl_policy
Extended IP access list my_ogacl_policy
10    permit object-group eng_service any any

I actually deleted all directories and files under bootflash: by following commands.

Router#delete /force /recursive lost+found
Router#delete /force /recursive .prst_sync
Router#delete /force /recursive tracelogs.923
Router#delete /force /recursive tracelogs
Router#delete /force /recursive .installer
Router#delete /force /recursive .rollback_timer
Router#dir /all
Directory of bootflash:/
242881  drwx        4096  May 10 2017 02:03:45 +00:00  .rollback_timer
    14  -rw-   205119800   Mar 1 2016 16:32:14 +00:00  asr1000rp1-ipbasek9.02.04.02.122-33.XND2.bin
7819087872 bytes total (7216553984 bytes free)
Router#

HOWEVER, after reboot, as shown below some directories are recreated. I guess it is OS-XE's normal behavior..

Router>en
Router#pwd
bootflash:
Router#dir /all
Directory of bootflash:/
242881  drwx        4096  May 10 2017 02:03:45 +00:00  .rollback_timer
437185  drwx        4096  May 10 2017 02:08:09 +00:00  tracelogs
    11  -rwx        5947  May 10 2017 02:04:30 +00:00  tracelogs.585
728641  drwx        4096  May 10 2017 02:06:18 +00:00  core
259073  drwx        4096  May 10 2017 02:06:18 +00:00  .prst_sync
129537  drwx        4096  May 10 2017 02:07:11 +00:00  .installer
    14  -rw-   205119800   Mar 1 2016 16:32:14 +00:00  asr1000rp1-ipbasek9.02.04.02.122-33.XND2.bin
7819087872 bytes total (7216197632 bytes free)
Router#