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Top Forums Shell Programming and Scripting Array Declaration and For Loop Post 302136157 by 33junaid on Saturday 15th of September 2007 04:16:05 PM
Old 09-15-2007
I just wrote this script and is working very fine:

#!/bin/bash

counter1=0
for i in `ls -ltr | grep -v "total" | grep -v "pre_swh" | awk '{ print $9 ":" $5 }'`;
do


arr_key_old[$counter1]=$i


echo "Counter1 is $counter1 "
echo "Key Old is : ${arr_key_old[$counter1]} "

counter1=`expr $counter1 + 1`
done

echo "Before sleeping"
sleep 120
echo "After sleeping"

counter2=0

for i in `ls -ltr | grep -v "total" | grep -v "pre_swh" | awk '{ print $9 ":" $5 }'`;
do

arr_key_new[$counter2]=$i


echo "Counter2 is $counter2 "
echo "Key new is : ${arr_key_new[$counter2]} "

counter2=`expr $counter2 + 1`
done

counter3=1
for j in `echo ${arr_key_old[*]}`
do

for k in `echo ${arr_key_new[*]}`
do

if [ "$j" = "$k" ]
then
echo " Here testing for old and new : $j is equal to $k"
file_name=`echo $j|awk -F':' '{ print $1 }'`
echo "$counter3 Final file name is $file_name"
counter3=`expr $counter3 + 1`
fi
done
done
 

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ECHO(1) 						    BSD General Commands Manual 						   ECHO(1)

NAME
echo -- write arguments to the standard output SYNOPSIS
echo [-n] [string ...] DESCRIPTION
The echo utility writes any specified operands, separated by single blank (' ') characters and followed by a newline (' ') character, to the standard output. The following option is available: -n Do not print the trailing newline character. This may also be achieved by appending 'c' to the end of the string, as is done by iBCS2 compatible systems. Note that this option as well as the effect of 'c' are implementation-defined in IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. Applications aiming for maximum portability are strongly encouraged to use printf(1) to sup- press the newline character. Some shells may provide a builtin echo command which is similar or identical to this utility. Most notably, the builtin echo in sh(1) does not accept the -n option. Consult the builtin(1) manual page. EXIT STATUS
The echo utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), csh(1), printf(1), sh(1) STANDARDS
The echo utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. BSD
April 12, 2003 BSD
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