Photoshop web design - 310 Part III . Choosing and Installing a
310 Part III . Choosing and Installing a Linux Distribution Querying the Package Database You will often need to obtain more information about packages that are already installed on your system. Because these operations do not modify the package database, they can be done as a non-root user. To list all packages known to dpkg, use the -l or –list commands: $ dpkg –list You can restrict the list by specifying a glob pattern: $ dpkg –list *lsof* The quotes are used to prevent the shell from replacing the wildcard with a list of matching files in the current directory. For more information about wildcards, see the glob man page. To view detailed information about a specific package, use the -s or –status command: $ dpkg –status lsof Package: lsof Status: install ok installed Priority: standard Section: utils … The origin package for a file can be determined using the -S or –search command: $ dpkg –search /bin/ls coreutils: /bin/ls The list of files in an installed package can be viewed using the -L or –listfiles command: $ dpkg –listfiles lsof /. /usr /usr/sbin /usr/bin /usr/bin/lsof … Examining a Package File Package files can be examined prior to installation using the –info (-I) and –contents (-c) command: Note
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