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Full Discussion: unix questions for newbie
Top Forums UNIX for Dummies Questions & Answers unix questions for newbie Post 302140641 by gholdbhurg on Monday 15th of October 2007 04:10:47 AM
Old 10-15-2007
unix questions for newbie

Hi Unix gurus,

I know these are some easy questions.
But i just want to be sure about them.
Hope someone can help explain the following please?

1) if [[ -r /etc/ngtpath.conf ]]
- What does the "-r" means?
2) isql -U $DBUSER -D $DBNAME -S $DSQUERY -w 1000 -s";" << testfile > $FILE
- What does the -s";" mean and what does the "<<" do?
3) if [[ -s $RPTFILE ]]; then
- May i know what the "-s" option do?

Thanks so much in advance.
 

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DPKG-PRECONFIGURE(8)						      Debconf						      DPKG-PRECONFIGURE(8)

NAME
dpkg-preconfigure - let packages ask questions prior to their installation SYNOPSIS
dpkg-preconfigure [options] package.deb dpkg-preconfigure --apt DESCRIPTION
dpkg-preconfigure lets packages ask questions before they are installed. It operates on a set of debian packages, and all packages that use debconf will have their config script run so they can examine the system and ask questions. OPTIONS
-ftype, --frontend=type Select the frontend to use. -pvalue, --priority=value Set the lowest priority of questions you are interested in. Any questions with a priority below the selected priority will be ignored and their default answers will be used. --terse Enables terse output mode. This affects only some frontends. --apt Run in apt mode. It will expect to read a set of package filenames from stdin, rather than getting them as parameters. Typically this is used to make apt run dpkg-preconfigure on all packages before they are installed. To do this, add something like this to /etc/apt/apt.conf: // Pre-configure all packages before // they are installed. DPkg::Pre-Install-Pkgs { "dpkg-preconfigure --apt --priority=low"; }; -h, --help Display usage help. SEE ALSO
debconf(7) AUTHOR
Joey Hess <joeyh@debian.org> 2012-09-10 DPKG-PRECONFIGURE(8)
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