Help with using different types of GREP Post: 302576957

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can anyone explain me difference between tar and ufsdump commands.............and also i wd like to know the difference between incremental and differential backup......... thx in advance

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What is the difference between: cd /tmp tar -cf - *.txt |gzip > tmp_txt.tar.gz and cd /tmp mknod pipe p gzip < pipe > /tmp/tmp_txt1.tar.gz & tar -cf pipe *.txt Apart from the fact that we have to create the pipe file manually, is there any difference in the performance of the two?...

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How do I grep in specific file types?

I have a directory with file types ending .log, .mml, .gll, .dll . How can I grep expressions only in say the .log files?

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Can I please have some ideas on how to do a recursive grep with certain types of files? The file types I want to use are *.c and *.java. I know this normally works with all files. grep -riI 'scanner' /home/bob/ 2>/dev/null Just not sure how to get it to work *.c and *.java files.

LEARN ABOUT XFREE86

dpkg-preconfigure

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>

								    2018-02-28						      DPKG-PRECONFIGURE(8)

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Discussion started by: girish_shukla

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Two types of pipes?

Discussion started by: blowtorch