apt install pkg_name
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$ sudo apt install sqlite
[sudo] password for your_name:
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?
$ rm /var/lib/dpkg/lock
install tweak tools on Ubuntu 18.04
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$ apt install gnome-tweak-tool (run as super user)
install jdk on ubuntu 18.04
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update-alternatives: --install needs <link> <name> <path> <priority>
sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-7-oraclejdk/bin/java 1082
update-alternatives: --remove needs <name> <path>
sudo update-alternatives --remove java /usr/lib/jvm/java-7-oraclejdk/bin/java
upgrade to latest LTS version
- 方式1：
sudo apt updatesudp apt upgradesudo update-manager
- 方式2：
- 检查升级：
sudo do-release-upgrade - 升级到 dev 版本：
sudo do-release-upgrade -d
- 检查升级：