ubuntu出现无法安装软件问题，如下图：

liu@liu-v:~/test$ sudo apt install ctags
[sudo] password for liu: 
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

只需删除两个文件 /var/lib/dpkg/lock-frontend 和 sudo rm -rf /var/lib/dpkg/lock

可能系统不同，删除的文件不同，根据系统提示删除即可

liu@liu-v:~/test$ sudo rm -rf /var/lib/dpkg/lock-frontend
liu@liu-v:~/test$ sudo apt install ctags
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
liu@liu-v:~/test$ sudo rm -rf /var/lib/dpkg/lock

删除命令

sudo rm -rf 要删除的文件路径

然后就可以安装了

liu@liu-v:~/test$ sudo apt install ctags
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'exuberant-ctags' instead of 'ctags'
exuberant-ctags is already the newest version (1:5.9~svn20110310-11).
0 upgraded, 0 newly installed, 0 to remove and 385 not