echo ' '
echo '============================='
echo 'ls *.c | wc'
echo '-----------------------------'
ls *.c | wc
echo '============================='
echo 'grep "(CCOPT)" Makefile | wc'
echo '-----------------------------'
grep "(CCOPT)" Makefile | wc
echo '============================='
echo 'wc -l -c *.c | grep total'
echo '-----------------------------'
wc -l -c *.c | grep total
echo '============================='
echo ' '


