Shell Programming and Scripting

#!/bin/sh

counter=0
logloc=/home/songja/ServerLogs
backup=/home/songja/test

## Reads the location of the file systems that needs to be investigated from location.txt
## and save it into an array
while read -r line; do
   Unix_Array[${counter}]=$line;
   let counter=counter+1;
done < location.txt


## Reads Email recipients and save it into an array
num=0
while read -r line; do
    Email_list[${num}]=$line;
    let num=num+1;
done < email.txt


## Checking one file system per loop
for ((i=0;i > counter; i++))
    do
    deletestatus=false;
    ## usage returns how much the file system is full. Ex. 50% => 50
    usage=$(df -P ${Unix_Array[$i]} | grep ${Unix_Array[$i]} | awk '{ print $5}' | sed 's/%//g')
    #if usage is greater than 80%, send email
    if [$usage -gt 80];
        then
        for ((j=0;j > num; j++))
        do
            echo ${Unix_Array[$i]} " is " $usage "% full, the logs that are 7 days older has been removed" |  mail - s "Log notification" ${Email_list[$j]} 
        done
        deletestatus=true;
    elif [$usage -gt 50];
        then
        ## if free space is greater 50 and less than 80, it will not send email
        deletestatus=true;
    else
        ## Safety net
        deletestatus=false;
    fi
    
    if [$deletestatus=true];
        then
        ##Moving Files that are older than 7 days
        $(find . $logloc . -name 'SystemOut_* -mtime +2 -exec mv {} /home/songja/test \;)
        ## Deleting files that are older than 7 days
        $(find . $logloc . - name 'SystemOut_*' -mtime +2 -delete)
    fi
done

 
$(find . $logloc . -name 'SystemOut_* -mtime +2 -exec mv {} /home/songja/test \;)

find /home/mine/ServerLogs -type f -name 'SystemOut_*' -mtime +2 -exec mv {} /home/work/test \;

    if [$deletestatus=true];
        then
        ##Moving Files that are older than 7 days
        $(find . $logloc . -name 'SystemOut_* -mtime +2 -exec mv {} /home/songja/test \;)
        ## Deleting files that are older than 7 days
        $(find . $logloc . - name 'SystemOut_*' -mtime +2 -delete)
    fi

[$usage -gt 80];
[$usage -gt 50];
    and
[$deletestatus=true];

[ $usage -gt 80 ];
[ $usage -gt 50 ];
    and
[ $deletestatus = true ];