这是输出 apt-cache policy firefox
firefox:
Installed: 26.0~linuxmint1+lmde
Candidate: 26.0~linuxmint1+lmde
Version table:
*** 26.0~linuxmint1+lmde 0
500 http://packages.linuxmint.com/ debian/import amd64 Packages
100 /var/lib/dpkg/status
版本显示为26.0~linuxmint1+lmde
,0
其后是什么?我已经尝试过各种软件包,并且0
在软件包版本之后总会有一个。据推测,这也可以采用其他值,但我还没有看到。
我通读的man
和info
页,apt-cache
都找不到任何相关内容。的唯一解释policy
是:
policy [pkg...]
policy is meant to help debug issues relating to the preferences
file. With no arguments it will print out the priorities of each
source. Otherwise it prints out detailed information about the
priority selection of the named package.
它是<minimum-priority-to-consider>
:
一般输出为:
package-name: Installed: <installed-version> Candidate: <version-installed-when-doing-apt-get-upgrade> Package-Pin: <version-of-Pin-in-etc-apt-preferences> Version table: *** <some-version> <minimum-priority-to-consider> <priority-of-this-instance> <repository1> <priority-of-this-instance> <repository2> *** <some-other-version> <minimum-priority-to-consider> <priority-of-this-instance> <repository3> <priority-of-this-instance> <repository4>
因此,在上面的输出中,包的firefox
版本26.0~linuxmint1+lmde
的最低优先级为0
,并且可以由优先级为500
和的两个存储库提供100
。
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我来说两句