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Full Discussion: I can't divide properly in shell
Top Forums UNIX for Dummies Questions & Answers I can't divide properly in shell Post 302170778 by mikez104 on Tuesday 26th of February 2008 03:45:41 PM
Old 02-26-2008
I can't divide properly in shell
I'm new at this and frustratd because I know this must be simple but here goes. I'm trying to write a script that will give me the percentage of a particular field over multiple text files.

Each day I have around 1500 files that are generated. Each file has around 100 lines in it. The lines that I want have LOI in the first field. Each line has 13 fields. The last field either has 0001 (good) or 0002 (bad). I need to find the total lines with LOI and figure the percentage of 0002 of the total.

Getting the total is easy.

total=`grep LOI date* | cut -d" " -f 13 | wc -l`

and getting the bad...

bad=`grep LOI date* | cut -d" " -f 13 |grep 0002| wc -l`

date* gives me all the files for the day in question. So that counts all the records and gets them into a variables. Then I tried

expr $failed / $played

and it just gives me 0.

I then tried this in AWK. I can do this

gawk '/LOI/ {print $13 }' date* | wc -l | gawk '{print "total " $0}'

but can't figure out how to get both values into awk and manipulate them.
please help...
 

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LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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