TLDR
Enter a command. For example: bzegrep, fossil commit, netselect.

apt-cache

 
Debian and Ubuntu package query tool. More information: https://manpages.debian.org/latest/apt/apt-cache.8.html.
 
  • Search for a package in your current sources:
     
    apt-cache search {{query}}
     
  • Show information about a package:
     
    apt-cache show {{package}}
     
  • Show whether a package is installed and up to date:
     
    apt-cache policy {{package}}
     
  • Show dependencies for a package:
     
    apt-cache depends {{package}}
     
  • Show packages that depend on a particular package:
     
    apt-cache rdepends {{package}}

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