Linux in a Nutshell, Fifth Edition

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Chapter 5: Package Management

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

--pkgid md5

Query the package with a package identifier that is the given MD5 digest of

the combined header and contents.

--querybynumber num

Query the numth database entry. Useful for debugging.

-qf, --queryformat string

Specify the format for displaying the query output, using tags to represent

different types of data (e.g., NAME, FILENAME, DISTRIBUTION). The

format specification is a variation of the standard printf formatting, with the

type specifier omitted and replaced by the name of the header tag inclosed in

brackets ({ }). For example:

%{NAME}

The tag names are case-insensitive. Use --querytags (see “Miscellaneous

options,” later in this section) to view a list of available tags. The tag can be

followed by :type to get a different output format type. The possible types

are:

:armor

Wrap a public key in ASCII armor.

:base64

Encode binary data as base64.

:date

Use %c format as in strftime(3) to display the preferred date and time

format for this locale.

:day

Use %a %b %d %Y format as in the function strftime(3). This format

displays the day, the month, the month as a decimal number, and the

four-digit year.

:depflags

Format dependency flags.

:fflags

Format file flags.

:hex

Use hexadecimal format.

:octal

Use octal format.

:perms

Format file permissions.

:shescape

Escape ...