DEBCONF-SHOW(1) Debconf DEBCONF-SHOW(1)NAME
debconf-show - query the debconf database
SYNOPSIS
debconf-show packagename [...] [--db=dbname]
debconf-show --listowners [--db=dbname]
debconf-show --listdbs
DESCRIPTION
debconf-show lets you query the debconf database in different ways.
The most common use is "debconf-show packagename", which displays all items in the debconf database owned by a given package, and their
current values. Questions that have been asked already are prefixed with an '*'.
This can be useful as a debugging aid, and especially handy in bug reports involving a package's use of debconf.
OPTIONS --db=dbname
Specify the database to query. By default, debconf-show queries the main database.
--listowners
Lists all owners of questions in the database. Generally an owner is equivalent to a debian package name.
--listdbs
Lists all available databases.
AUTHOR
Joey Hess <joeyh@debian.org> and Sylvain Ferriol
2018-02-28 DEBCONF-SHOW(1)
Check Out this Related Man Page
DEBCONF(1) Debconf DEBCONF(1)NAME
debconf - run a debconf-using program
SYNOPSIS
debconf [options] command [args]
DESCRIPTION
Debconf is a configuration system for Debian packages. For a debconf overview and documentation for sysadmins, see debconf(7) (in the
debconf-doc package).
The debconf program runs a program under debconf's control, setting it up to talk with debconf on stdio. The program's output is expected
to be debconf protocol commands, and it is expected to read result codes on stdin. See debconf-devel(7) for details about the debconf
protocol.
The command to be run under debconf must be specified in a way that will let your PATH find it.
This command is not the usual way that debconf is used. It's more typical for debconf to be used via dpkg-preconfigure(8) or
dpkg-reconfigure(8).
OPTIONS -opackage, --owner=package
Tell debconf what package the command it is running is a part of. This is necessary to get ownership of registered questions right, and
to support unregister and purge commands properly.
-ftype, --frontend=type
Select the frontend to use.
-pvalue, --priority=value
Specify the minimum priority of question that will be displayed.
--terse
Enables terse output mode. This affects only some frontends.
EXAMPLES
To debug a shell script that uses debconf, you might use:
DEBCONF_DEBUG=developer debconf my-shell-prog
Or, you might use this:
debconf --frontend=readline sh -x my-shell-prog
SEE ALSO debconf-devel(7), debconf(7)AUTHOR
Joey Hess <joeyh@debian.org>
2018-02-28 DEBCONF(1)
Why do shell builtins like echo and pwd have binaries in /bin? When I do which pwd, I get the one in /bin. that means that I am not using the builtin version? What determines which one gets used? Is the which command a definitive way to determine what is being run when I enter pwd? (16 Replies)
Introduction
I have seen some misinformation regarding Unix file permissions. I will try to set the record straight. Take a look at this example of some output from ls:
$ ls -ld /usr/bin /usr/bin/cat
drwxrwxr-x 3 root bin 8704 Sep 23 2004 /usr/bin
-r-xr-xr-x 1 bin bin ... (6 Replies)
I see lot of ad-hoc shell scripts in our servers which don't have a shebang at the beginning .
Does this mean that it will run on any shell ?
Is it a good practice to create scripts (even ad-hoc ones) without shebang ? (16 Replies)
For a starter I know the braces are NOT in the code...
Consider these code snippets:-
#!/bin/bash --posix
x=0
somefunction()
if
then
echo "I am here."
fi
# somefunction
#!/bin/bash --posix
x=0
somefunction()
if (2 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hi all,
I am learning POSIX shell programming, and the book I read, uses the let command for integer arithmetic.
I have downloaded and use the shellcheck program on Linux.
This programs says:
In POSIX sh, 'let' is undefined.
See the screenshot attached.
What is the POSIX... (1 Reply)
I don't know how to start this but here goes.
I've been "using" Linux for over 10 years, possibly more and I still feel like I'm nowhere
where I should be. I'll be fair most of my time was spent either figuring out how
to run games on *nix at the time but as I got older and "wiser" I... (8 Replies)
In a professional environment with traditional application you often want (or are asked) to report the users.
Traditionally there is the who command
who | awk '{print $1}'telnetd or sshd register the users in the utmp file, to be shown with who, w, users, finger, pinky, ...
In addition they... (1 Reply)
Hi all, (mainly Neo)...
I keep noticing that the SQRT code I wrote recently for a POSIX shell keeps appearing, (the green colour sticks out like a sore thumb).
So I decided to take a look on Google.
Guess what?
UNIX.COM comes first in Google's listing just from two words, see image... (2 Replies)