export EDITOR=/usr/bin/emacs
crontab -e
which echo
fg
pwd
fg
ls -l in-lab-14.txt
ls -l in-lab-14.txt
cat in-lab-14.txt | wc 
cat in-lab-14.txt | wc -l
cat in-lab-14.txt | wc -l
cat in-lab-14.txt | wc -l
more in-lab-14.txt 
crontab -e
cat in-lab-14.txt | wc -l
cat in-lab-14.txt | wc -l
more in-lab-14.txt 
crontab -r
crontab -l