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Top Forums Shell Programming and Scripting Unix shell script to parse the contents of comma-separated file Post 302206789 by joeyg on Wednesday 18th of June 2008 12:10:07 PM
Old 06-18-2008
Hammer & Screwdriver Not as elegant, but a different way of approaching the matter

Code:
> cat chk_valid 
#! /bin/bash
#
# script to check on file conditions

ifile="QDB_2008.txt"

line_1=$(head -1 $ifile)
line_lst=$(tail -1 $ifile)
line_cnt=$(cat $ifile | wc -l)
detl_cnt=$((line_cnt-2))

line_1_val=$(echo $line_1 | cut -d"," -f5)
line_lst_val=$(echo $line_lst | cut -d"," -f2 | cut -d"#" -f1)

if [ "$line_1_val" -ne "$line_lst_val" ]
   then
   echo "Error - header & footer line counts differ"
fi

if [ "$detl_cnt" -ne "$line_1_val" ]
   then
   echo "Error - # detail lines does not match expected counts"
fi

 

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echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.10 3 Aug 1994 echo(1B)
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