How to read multiple lines in while statement in ksh - ksh

Question

I am creating a script to help me through my daily work and automate it. I have encountered my problem when trying to input multiple lines in my while loop. I usually do it in my for loop but I execute it via command.
Sample:
for i in `cat listoffiles.txt`
do
echo $i
find <path> -name *$i* | awk -F "." {'print $4'} #to display a specific value
done
Now I am trying to automate it with a while loop. Having problems to read multiple input lines in it.
For example:
i want to search for these inputs:
For
Example
only
here is my script for it:
#!/bin/ksh
echo Please enter file #:
read Var1
while true
do
VarSession=`find $OT_DIR/archive*/ -name *$Var1* | awk -F "." {'print $4'}`
if [ "$VarSession" = "" ]
then
echo No match for File# $Var1 on this leg or is out of retention.
else
echo File# $Var1 is under Session# $VarSession
fi
done

Answer 1

VarSession=`find $OT_DIR/archive*/ -name *$Var1* | awk -F "." {'print $4'}`
Assuming that you provide 1 2 3 as input, The line above translates to this
VarSession=`find $OT_DIR/archive*/ -name "1 2 3" | awk -F "." {'print $4'}`
But you want to search all those values separately so you need another loop. for loop serves the purpose if traversing white-space separated entries.
Also, based upon the original script that you showed, I assume you want the script to search file by file, rather than scanning entire directories. However, the statement above will put all output in the variable without traversing it. To traverse line by line, while loop does the job.
#!/bin/ksh
# -n switch suppresses printing a newline
echo -n 'Please enter file #: '
read Var1
# Traverse over all entered values in Var1 (separated by white space)
for i in $Var1
do
#Set a flag to zero, logic explained later
Flag=0
find $OT_DIR/archive*/ -name *$i* | while read FileName
do
#Set the Flag to 1 if find command finds something
Flag=1
VarSession=`echo $FileName | awk -F "." {'print $4'}`
if [ "$VarSession" = "" ]
then
#If find found a file but VarSession has nothing then file name is not correct
echo "Some conventions went wrong in file name: $FileName"
else
echo "File# $Var1 is under Session# $VarSession"
fi
done
#If find found nothing, there was no match
if [ $Flag -eq 0 ]
then
echo No match for File# $Var1 on this leg or is out of retention.
fi
done