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Full Discussion: Newbie problem with ksh script
Top Forums Shell Programming and Scripting Newbie problem with ksh script Post 99772 by sabercats on Tuesday 21st of February 2006 12:26:35 PM
Old 02-21-2006
Newbie problem with ksh script
Hi all,
I have a directory have all of the .stat and .dat file :
they are is a pipe separate flat file.
Example:
log-20061202.stat contain 1st line and last line of log-20061202.dat with record count of that day.
Example:
Total record = 240
Tom|02-12-2006|1600 W.Santa Clara|SanJose|95123|1001|ENG <--first
Mike|02-12-2006|23 Clayton Rd|San Francisco|94127|6666|PHY <-- last

log-20061202.dat have
NAME|DATETIME|Address|City|Zip|StudentID|Class
Tom|02-12-2006|1600 W.Santa Clara|SanJose|95123|1001|ENG <-- first
John|02-13-2006|234 Wlliam Rd|Oakland|94321|2324|MATH
..............................................
Mike|02-12-2006|23 Clayton Rd|San Francisco|94127|6666|PHY <--last


For each new log-yyyymmdd.dat file compare the record count from the stat file with the record count of the dat file. Raise an error if they do not match.

For each log-yyyymmdd.stat file have the first and last record of the dat file, confirm the first and last record of the dat file are in stat file. Raise an error if they do not match.


For each record that we are going to output file, the file to output is controled by the DATE field of the .dat file not the timestamp contained in the file name.

The output will have name yyyymmdd.dat and contain
NAME|STUDENTID|CLASS

This is a hard problem for me, please help me to learn more how to use ksh shell to solve it. Thanks for sharing.
 

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LEARN ABOUT DEBIAN

plotit

plotit(1)						      General Commands Manual							 plotit(1)

NAME

       plotit - experiment data visualization

SYNOPSIS

       plotit -w FILE
       plotit [-lp] -q FILE [FILE]...
       plotit [-lp] Y FILE [FILE...]
       plotit [-lp] X Y FILE [FILE...]

DESCRIPTION

       The  plotit program is a simple plotting program which can draw line plots and stripcharts using a command language similar to that of gnu-
       plot.  It can also make quick plots of multiple data files from the command-line.  Wildcards may be used in the file names.

       The program takes optional expressions which can be used to manipulate data columns before plotting.  Expressions may be as simple  as  the
       designation  of	a  column  to  be  plotted or may contain arithmetic expressions and functions.  In the latter case the espression must be
       enclosed in 'single' or "double" quotation marks. Column numbers are designated by the at-sign character (@).  A single expression is  used
       for the Y axis of the plot.

OPTIONS

       -h, --help
	      Print the usage and exit.

       --version
	      Print the version number and exit.

       -w     Watch  the input file for commands to stripchart, or wait to read all of stdin before plotting.  Only one file or - for stdin may be
	      specified with this option.  No other options may be used in conjuction with this option.

       -q     Plot the first and second columns of each file.

       -l     Plot with lines.

       -p     Plot with points.

EXAMPLES

       Plot the second column versus the first of all three files with lines only.

	      plotit -lq file1.dat file2.dat file3.dat

       Plot the quotient of the third column and the second column versus the first column of all files matching the pattern using points only.

	      plotit -p '@3/@2' file??.dat

       Plot the natural log of the second column divided by the third column versus the fourth column.	By default these  data	are  plotted  with
       both lines and points.

	      plotit @4 'log(@2/@3)' file.dat

AUTHOR

       This manual page was written by Carlo Segre <segre@iit.edu>.

								 February 21, 2009							 plotit(1)
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