ls | less
ls | grep main | less
ls | scan . | less
ls | scan . | less
fg
fg
fg
exit
exit
ls
ls main.c 
ls main.c 
ls main.c 
ls -al main.c 
ls -al main.c | scan .
ls | scan .
ls
exit
ls | scan .
ls | scan . | less
ls | scan . | less
ls | scan . | grep m
ls | scan . | grep m | less
def fun { grep $ARGV }
ls | fun main
ls | fun main | less
ls | fun main | less
ls | fun main | less
ls | fun main | less
ls | fun main | less
reset
ls | fun main | less
ls | scan . | grep m | less
ls | fun main | less
exit
ls | scan .
ls | less
ls | less
ls | less
ls | less
ls | less
ls | less
ls | less
ls | less
ls | less
ls | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . | less
ls | scan . 
def fun { grep $ARGV }
ls | fun main
ls | fun main | less
ls | fun main | less
ls | fun main | less
exit
ls | scan .
ls | scan . | less
ls | scan . | less
ls | less
ls | less
def fun { grep $ARGV }
ls | fun main
ls | fun main | less
ls | fun main | less
ls | fun main | less
ls | fun main | less
exit
ls | scan .
ls | scan . | less
def fun { grep $ARGV }
ls | fun main | less
ls | fun main | less
ls | fun main | less
exit
