parsing script

Shell Programming and Scripting
1

Hello everybody!
I'm trying to create a parse script but I keep getting errors. Can you please help me out.

#!/bin/bash
#Blank Blank
#April 6, 2011
##########################################################################################
#Script from Google.com
#Modified by blank blank
#Modified on April 6, 2011
##########################################################################################
#This Script is to file parse the log files while implementing a timing script
##########################################################################################
##########################################################################################
#set -x #Uncomment to debug this script
#set -n #Uncomment to check script syntax without any execution,
##########################################################################################
##########################################################################################
#
#From Randy K. Micheal
#
function hello
{
echo "source?"
read A
echo "destination?"
read B
INFILE= $A #/home/blank/Desktop/script/access_log* 
OUTFILE= $B #writefile.out

}

########################################################################################

function rotate
{
while [[ cat_while_read_LINE ]];     # Loop forever...until this function is killed
do
    (( RCOUNT = RCOUNT + 1 )) # Increment the RCOUNT

    case $RCOUNT in
    1) echo "."
       sleep 1s
       ;;
    2) echo ".."
       sleep 1s
       ;;
    3) echo "..."
       sleep 1s
       ;;
    4) echo "...c"
       sleep 1s
       ;;
    5) echo "...co"
       sleep 1s
       ;;
    6) echo "...cof"
       sleep 1s
       ;;
    7) echo "...coff"
       sleep 1s
       ;;
    8) echo "...coffe"
       sleep 1s
       ;;
    9) echo "...coffee"
       sleep 1s
       ;;
    10) echo "...coffeeB"
       sleep 1s
       ;;
    11) echo "...coffeeBr"
       sleep 1s
       ;;
    12) echo "...coffeeBre"
       sleep 1s
       ;;
    13) echo "...coffeeBrea"
       sleep 1s
       ;;
    14) echo "...coffeeBreak"
       sleep 1s
       ;;
    15) echo "...coffeeBreak."
       sleep 1s
       ;;
    16) echo "...coffeeBreak.."
       sleep 1s
       ;;
    17) echo "...coffeeBreak..."
       sleep 1s
       ;;
    *) RCOUNT="0" # Reset the RCOUNT to "0", zero.
       ;;
    esac
done
}

########################################################################################
#
#From Randy K. Micheal
#
function cat_while_read_LINE
{
#Method 1

#Zero out the $OUTFILE

>$OUTFILE

cat $INFILE | while read LINE
do
    echo "$LINE" >> $OUTFILE
    :
done
}

########################################################################################
#
# From Randy K. Micheal
#
#
#QFILE=access_log.*
#{
#cat $QFILE | while read LINE
#do
#    echo "$LINE" >> $OUTFILE
#    :
#done
#}

########################################################################################

#Time and parse the file
hello
echo "parsing"
rotate 
ROTATE_PID=$!
X=$(date +%s)
cat_while_read_LINE &
Y=$(date +%s)
kill $ROTATE_PID
DIF=$(( $Y - $X ))
MIN=$(( $DIF / 60 ))
SEC=$(( $DIF % 60 ))
if [ $DIF -ge 60 ]
then
    echo "The file(s) were parsed in $MIN minute(s) and $SEC seconds!\n";
else
    echo "The file(s) were parsed in $DIF second(s)! \n";
fi

These are the errors that I keep on getting

/home/blank/Desktop/script/access_log-20101201: line 870: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 871: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 872: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 873: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 874: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 875: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 876: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 877: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 878: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 879: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 880: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 881: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 882: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 883: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 884: 209.221.168.11: command not found
/home/blank/Desktop/script/access_log-20101201: line 885: 66.249.65.70: command not found
/home/blank/Desktop/script/access_log-20101201: line 886: 123.125.66.124: command not found
/home/blank/Desktop/script/access_log-20101201: line 887: 207.46.13.86: command not found
/home/blank/Desktop/script/access_log-20101201: line 888: 220.181.7.130: command not found
/home/blank/Desktop/script/access_log-20101201: line 889: 129.121.131.74: command not found
/home/blank/Desktop/script/access_log-20101201: line 890: 129.121.131.74: command not found
/home/blank/Desktop/script/access_log-20101201: line 891: 208.115.111.248: command not found
/home/blank/Desktop/script/access_log-20101201: line 892: 208.115.111.248: command not found

2

I guess that the problem is due to the [[ ]] in the rotate function.
You need cat_while_read_LINE to return true (0) for the while loop to continue and false (non 0) for the while loop to terminate. No square brackets are needed.

3

Can you show me an example of how to implement this return true(0)

---------- Post updated at 09:17 AM ---------- Previous update was at 09:15 AM ----------

Can you show me an example of how to implement the return true(0)