Tenho uma lista parecida com a seguinte:
192.168.2.1 sometext.com
192.168.2.1
192.168.2.3
192.156.1.6
192.156.1.6 moretext.com
192.123.1.1
192.564.7.3
192.564.7.3 hello.com
Saída que eu preciso:
192.168.2.1 sometext.com
192.168.2.3
192.156.1.6 moretext.com
192.123.1.1
192.564.7.3 hello.com
Desejo remover IPs que não possuem um nome de host somente se eles já tiverem uma linha que inclua um nome de host.
Veja acima, por exemplo.
Isso é possível fazer?
Recebo o seguinte erro ao executar o comando:
$ sudo apt-get clean && sudo apt-get update && sudo apt-get upgrade -y && sudo apt-get autoclean -y && sudo apt-get autoremove -y
Hit:1 http://ppa.launchpad.net/remmina-ppa-team/remmina-next/ubuntu xenial InRelease
Hit:2 http://gb.archive.ubuntu.com/ubuntu xenial InRelease
Hit:3 http://security.ubuntu.com/ubuntu xenial-security InRelease
Hit:4 http://gb.archive.ubuntu.com/ubuntu xenial-updates InRelease
Hit:5 http://gb.archive.ubuntu.com/ubuntu xenial-backports InRelease
Hit:6 http://repository.spotify.com stable InRelease
Ign:7 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:8 https://packages.cisofy.com/community/lynis/deb xenial InRelease
Hit:9 https://download.virtualbox.org/virtualbox/debian xenial InRelease
Hit:10 https://download.sublimetext.com apt/stable/ InRelease
Hit:11 http://dl.google.com/linux/chrome/deb stable Release
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
libmm-glib0 libqmi-proxy modemmanager
The following packages will be upgraded:
avahi-dnsconfd
1 to upgrade, 0 to newly install, 0 to remove and 3 not to upgrade.
Need to get 14.1 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://gb.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 avahi-dnsconfd amd64 0.6.32~rc+dfsg-1ubuntu2.1 [14.1 kB]
Fetched 14.1 kB in 0s (168 kB/s)
dpkg: warning: files list file for package 'avahi-daemon' missing; assuming package has no files currently installed
(Reading database ... 280768 files and directories currently installed.)
Preparing to unpack .../avahi-dnsconfd_0.6.32~rc+dfsg-1ubuntu2.1_amd64.deb ...
Job for avahi-daemon.socket canceled.
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
Job for avahi-daemon.socket canceled.
dpkg: error processing archive /var/cache/apt/archives/avahi-dnsconfd_0.6.32~rc+dfsg-1ubuntu2.1_amd64.deb (--unpack):
subprocess new pre-removal script returned error exit status 1
Errors were encountered while processing:
/var/cache/apt/archives/avahi-dnsconfd_0.6.32~rc+dfsg-1ubuntu2.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Eu tentei o seguinte:
sudo apt-get -f install
sudo dpkg --configure -a
sudo rm /var/lib/dpkg/info/avahi-daemon.*
Mas não ajudou.
Em formação:
$ uname -a
Linux mybox 4.13.0-38-generic #43~16.04.1-Ubuntu SMP Wed Mar 14 17:48:43 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux