Shell Programming and Scripting

num=1
MAX_SLAVE=500
TOKEN_COUNT=10


while [ $num -lt $MAX_SLAVE ] ; do date "+%Y%m%d %H:%M:%S : client $num started"
./loader -u ../token.txt -i itemlist -c $TOKEN_COUNT -s IT  >> /tmp/loader.log &
(( num++ ))
done
date "+%Y%m%d %H:%M:%S : client $MAX_SLAVE started"
./loader -u ../token.txt -i itemlist -c $TOKEN_COUNT -s IT |tee -a /tmp/loader.log
date "+%Y%m%d %H:%M:%S : client $MAX_SLAVE completed"

filearr=( tokfile1.txt
          tokfile2.txt
          tokfile3.txt
          tokfile4.txt
          tokfile5.txt
        )

for file in ${filearr[@]}
do
    while read token
    do
        ...
        ...
        <do more with $token>
        ...
        ...
    done < $file
done