hostsearch — query
    several hosts for installed Debian packages
  
    hostsearch | 
    [-f hostsfile]
      pkgname... | 
  
The hostsearch utility connects to several
    hosts using SSH and checks if the specified Debian packages are
  installed.
Options:
  -f 
  - Specify the file containing the list of hosts to query (default:
      int.hoster.bg.z).
 
  -h 
  - Display program usage information and exit.
 
  -V 
  - Display program version information and exit.
 
The hostsearch utility exits 0 on
    success, and >0 if an error occurs.
The hostsearch utility's operation is
    currently not directly affected by its environment.
The hostsearch utility reads the hosts
    list file (either int.hoster.bg.z or the one
    specified as an argument to the -f command-line
    option) to determine the list of hosts to connect to. This should be a plain
    text file containing one hostname per row.
Connect to the hosts listed in the
    int.hoster.bg.z file and list those that have
    curl installed:
hostsearch curl
Specify a different host list file and check for more
  packages:
hostsearch -f ringlet.z
  apt-listchanges sysgather
The hostsearch utility was written by
    Peter Pentchev in 2010.
Peter Penchev
    ⟨roam@ringlet.net⟩