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Full Discussion: awk Script
Top Forums UNIX for Beginners Questions & Answers awk Script Post 303043455 by adgjmpt on Wednesday 29th of January 2020 04:53:02 AM
Old 01-29-2020
@RudiC

I am new to this forum, Still finding my way around the rules for posting in this forum, Apologizes for the formatting errors i have done.

In reference to your Post-3

- how to select / reject the devices (e.g. 172.17.168.227 is missing in your desired output)?
All devices have to accepted my output may have omitted the device while formatting



- how to fill items not yet found when encountering the print trigger ("System Name:")?
If the item is not found it can be set as null

- why not use "System Description" as the print trigger?
By mistake i guess i pasted the version of the script which i was working on , Print trigger was actually should be "System Description"

- why <TAB> chars in your desired output, not the commas set as OFS in your script?
I copied from the output from excel and tried to format it to paste in the forum, The Formatting got messed up.
 

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LEARN ABOUT PLAN9

dpkg-trigger

dpkg-trigger(1) 						    dpkg suite							   dpkg-trigger(1)

NAME

       dpkg-trigger - a package trigger utility

SYNOPSIS

       dpkg-trigger [option...] trigger-name
       dpkg-trigger [option...] command

DESCRIPTION

       dpkg-trigger is a tool to explicitly activate triggers and check for its support on the running dpkg.

       This  can be used by maintainer scripts in complex and conditional situations where the file triggers, or the declarative activate triggers
       control file directive, are insufficiently rich. It can also be used for testing and by system administrators (but note that  the  triggers
       won't actually be run by dpkg-trigger).

       Unrecognized trigger name syntaxes are an error for dpkg-trigger.

COMMANDS

       --check-supported
	      Check  if  the running dpkg supports triggers (usually called from a postinst). Will exit 0 if a triggers-capable dpkg has run, or 1
	      with an error message to stderr if not. Normally, however, it is better just to activate the desired trigger with dpkg-trigger.

       -?, --help
	      Show the usage message and exit.

       --version
	      Show the version and exit.

OPTIONS

       --admindir=dir
	      Change the location of the dpkg database. The default location is /var/lib/dpkg.

       --by-package=package
	      Override trigger awaiter (normally set by dpkg through the DPKG_MAINTSCRIPT_PACKAGE environment variable of the maintainer  scripts,
	      naming the package to which the script belongs, and this will be used by default).

       --no-await
	      This option arranges that the calling package T (if any) need not await the processing of this trigger; the interested package(s) I,
	      will not be added to T's trigger processing awaited list and T's status is unchanged.  T may be considered installed even  though  I
	      may not yet have processed the trigger.

       --await
	      This option does the inverse of --no-await (since dpkg 1.17.21).	It is currently the default behavior.

       --no-act
	      Just test, do not actually change anything.

EXIT STATUS

       0      The requested action was successfully performed.	Or a check or assertion command returned true.

       1      A check or assertion command returned false.

       2      Fatal  or  unrecoverable error due to invalid command-line usage, or interactions with the system, such as accesses to the database,
	      memory allocations, etc.

ENVIRONMENT

       DPKG_ADMINDIR
	      If set and the --admindir option has not been specified, it will be used as the dpkg data directory.

SEE ALSO

       dpkg(1), deb-triggers(5), /usr/share/doc/dpkg-dev/triggers.txt.gz.

1.19.0.5							    2018-04-16							   dpkg-trigger(1)
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