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Full Discussion: question from a dummy
Top Forums UNIX for Dummies Questions & Answers question from a dummy Post 302086794 by tookers on Sunday 27th of August 2006 08:06:46 PM
Old 08-27-2006
Quote:
Originally Posted by cinnamonbear
okay so I just started this unix class and understood all the test questions but this "normal" question threy me through a loop Smilie. The question is Why are UNIX commands noninteractive and why is their output not usually preceededby header information? This question has been driving me insane for an hour now please help Smilie
Hey there,

From my understanding, Unix was developed as a primarily server operating system. Thus programs had to be developed to run non-interactively, as user interactivity may not always be possible. Due to the amount of options and use of piping i guess the use of headers in most unix programs would be useless. For example, if you run dmesg on a system it doesn't print any headers... as there are so many different kinds of hardware and messages displayed, headers would be useless as they wouldn't always be accurate.
Most system administrators create their own scripts to deal with certain output files and mangle them in a way that is infromative and useful to them.

That's a stinker of a question you've got.
 

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DPKG-RECONFIGURE(8)						      Debconf						       DPKG-RECONFIGURE(8)

NAME
dpkg-reconfigure - reconfigure an already installed package SYNOPSIS
dpkg-reconfigure [options] packages DESCRIPTION
dpkg-reconfigure reconfigures packages after they have already been installed. Pass it the names of a package or packages to reconfigure. It will ask configuration questions, much like when the package was first installed. If you just want to see the current configuration of a package, see debconf-show(1) instead. OPTIONS
-ftype, --frontend=type Select the frontend to use. The default frontend can be permanently changed by: dpkg-reconfigure debconf Note that if you normally have debconf set to use the noninteractive frontend, dpkg-reconfigure will use the dialog frontend instead, so you actually get to reconfigure the package. -pvalue, --priority=value Specify the minimum priority of question that will be displayed. dpkg-reconfigure normally shows low priority questions no matter what your default priority is. See debconf(7) for a list. --default-priority Use whatever the default priority of question is, instead of forcing the priority to low. -u, --unseen-only By default, all questions are shown, even if they have already been answered. If this parameter is set though, only questions that have not yet been seen will be asked. --force Force dpkg-reconfigure to reconfigure a package even if the package is in an inconsistent or broken state. Use with caution. --no-reload Prevent dpkg-reconfigure from reloading templates. Use with caution; this will prevent dpkg-reconfigure from repairing broken templates databases. However, it may be useful in constrained environments where rewriting the templates database is expensive. -h, --help Display usage help. SEE ALSO
debconf(7) AUTHOR
Joey Hess <joeyh@debian.org> 2018-02-28 DPKG-RECONFIGURE(8)
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