hxmuller/print Debian package summary for each package listed in file

## print Debian package summary for each package listed in file
# cat - concatenate files and print on the standard output
# xargs - build and execute command lines from standard inpout
# dpkg-query - a tool to query the dpkg database
#   -W list packages matching given pattern, output can be customized
#   -f specifies the format of the output of -W

cat filename | xargs dpkg-query -W -f='${binary:Package}\n\t${binary:Summary}\n'
	# cat - concatenate files and print on the standard output
	# xargs - build and execute command lines from standard inpout
	# dpkg-query - a tool to query the dpkg database
	# -W list packages matching given pattern, output can be customized
	# -f specifies the format of the output of -W

	cat filename \| xargs dpkg-query -W -f='${binary:Package}\n\t${binary:Summary}\n'