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Full Discussion: Performing extractions on web source page
Top Forums Shell Programming and Scripting Performing extractions on web source page Post 302550917 by slak0 on Sunday 28th of August 2011 05:02:57 PM
Old 08-28-2011
Performing extractions on web source page
I have downloaded a web source page to a file. I then egrep a single word to extract a line containing it to another file.
I then cat the second file and remove everything before a word and after a second word to capture the phrase desired.
This did not work. I used vi to validate that the 2 search words existed in the extracted (second) file.
To test I inserted XXXX and YYYY in the second file and used those words as sed extractions terms instead of the terms contained which I originally searched on. That works.
Can someone explain/suggest what might be in the extracted file (#2) that is fiddling my search? Here is how I did it:
Code:
egrep "seconds" /tmp/wget_saved_file > /tmp/tstfil

[used vi to insert XXXX & YYYY into tstfil]
Code:
cat /tmp/tstfil | sed  's/.*XXXX//;s/YYYY.*$//'   #<<--works

Is there perhaps something about text contained in a source file that prevents it from being used as search terms?
Last edited by pludi; 08-28-2011 at 06:51 PM..
 

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LEARN ABOUT DEBIAN

pull-lp-source

PULL-LP-SOURCE(1)					      General Commands Manual						 PULL-LP-SOURCE(1)

NAME

       pull-lp-source - download a source package from Launchpad

SYNOPSIS

       pull-lp-source [options] source package [release|version]

DESCRIPTION

       pull-lp-source  downloads  and  extracts  the  specified version of <source package> from Launchpad, or the latest version of the specified
       release.  To request a version from a particular pocket say release-pocket (with a magic -release for only the release pocket).	If no ver-
       sion or release is specified, the latest version in the development release will be downloaded.

OPTIONS

       Listed below are the command line options for pull-lp-source:

       source package
	      This is the source package that you would like to be downloaded from Launchpad.

       version
	      This is the version of the source package to be downloaded.

       release
	      This  is	the  release that you would like the source package to be downloaded from.  This value defaults to the current development
	      release.

       -h, --help
	      Display a help message and exit.

       -d, --download-only
	      Do not extract the source package.

       -m UBUNTU_MIRROR, --mirror=UBUNTU_MIRROR
	      Use the specified Ubuntu mirror.	Should be in the form http://archive.ubuntu.com/ubuntu.  If the package isn't found on	this  mir-
	      ror, pull-lp-source will fall back to Launchpad, as its name implies.

       --no-conf
	      Do not read any configuration files, or configuration from environment variables.

ENVIRONMENT

       All  of	the  CONFIGURATION  VARIABLES  below are also supported as environment variables.  Variables in the environment take precedence to
       those in configuration files.

       DIST   Specifies the default target.

CONFIGURATION VARIABLES

       The following variables can be set in the environment or in ubuntu-dev-tools(5) configuration files.  In  each  case,  the  script-specific
       variable takes precedence over the package-wide variable.

       PULL_LP_SOURCE_UBUNTU_MIRROR, UBUNTUTOOLS_UBUNTU_MIRROR
	      The default value for --mirror.

SEE ALSO

       dget(1), pull-debian-source(1), pull-debian-debdiff(1), ubuntu-dev-tools(5)

AUTHOR

       pull-lp-source  and  this manual page were written by Iain Lane <iain@orangesquash.org.uk>.  Both are released under the GNU General Public
       License, version 3 or later.

ubuntu-dev-tools						   4 August 2008						 PULL-LP-SOURCE(1)
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