file='something.txt'
while read line; do
    echo $line
done < $file

i=0
while [ $i -le 2 ]; do
    echo Number: $i
    ((i++))
done

for (( counter=10; counter>0; counter-- ))
do
    echo -n "$counter "
done

for i in [1 2 3 4 5]
do
    print "Current element: $i"
done

LOG_DIR=/var/log
cd $LOG_DIR
cat /dev/null < messages
cat /dev/null < wtmp
echo "Logs cleaned up."