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Full Discussion: How to extract a portion of text from a log file
Top Forums UNIX for Dummies Questions & Answers How to extract a portion of text from a log file Post 302280576 by atilano on Tuesday 27th of January 2009 09:25:43 AM
Old 01-27-2009
Quote:
Originally Posted by zaxxon
Can try this one:
Code:
sed '/^===\+ Carbon .*===\+$/,/^=\+[[:space:]]*$/!d' infile

You have a blank at the end of the last separator line so I included that [[:space:]]* to make sure it get's it.
Thanks for your help!

I want to make sure I understand what is going on: sed will send to STDOUT the block of text beginning with "==== Carbon" and ending with "===== " (and everything in between from the input file /Library/Logs/CCC.log.

What I don't understand is how sed knows to start at the end of CCC.log (where the latest log entry would be) and how sed knows it is supposed to send one log entry and not every log entry. I have a feeling it has something to do with !d at the end of the command but could not find anything in the man page.

Thanks again for your help.

Code:
#! /bin/bash 
sed '/^===\+ Carbon .*===\+$/,/^=\+[[:space:]]*$/!d' /Library/Logs/CCC.log | mail -s "CCC Log" "myemailaddress"

 

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LEARN ABOUT DEBIAN

xcmssetcccofcolormap

XcmsCCCOfColormap(3)						  XLIB FUNCTIONS					      XcmsCCCOfColormap(3)

NAME

       XcmsCCCOfColormap, XcmsSetCCCOfColormap - query and modify CCC of a colormap

SYNTAX

       XcmsCCC XcmsCCCOfColormap(Display *display, Colormap colormap);

       XcmsCCC XcmsSetCCCOfColormap(Display *display, Colormap colormap, XcmsCCC ccc);

ARGUMENTS

       display	 Specifies the connection to the X server.

       ccc	 Specifies the CCC.

       colormap  Specifies the colormap.

DESCRIPTION

       The XcmsCCCOfColormap function returns the CCC associated with the specified colormap.  Once obtained, the CCC attributes can be queried or
       modified.  Unless the CCC associated with the specified colormap is changed with XcmsSetCCCOfColormap, this CCC is used when the specified
       colormap is used as an argument to color functions.

       The XcmsSetCCCOfColormap function changes the CCC associated with the specified colormap.  It returns the CCC previously associated with
       the colormap.  If they are not used again in the application, CCCs should be freed by calling XcmsFreeCCC.  Several colormaps may share the
       same CCC without restriction; this includes the CCCs generated by Xlib with each colormap.  Xlib, however, creates a new CCC with each new
       colormap.

SEE ALSO

       DisplayOfCCC(3), XcmsConvertColors(3), XcmsCreateCCC(3), XcmsDefaultCCC(3), XcmsSetWhitePoint(3)
       Xlib - C Language X Interface

X Version 11							   libX11 1.5.0 					      XcmsCCCOfColormap(3)
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