1 echo hello there 2 echo $SHELL 3 pwd 4 ls 5 ls -l 6 ls -a 7 pwd 8 ls 9 cd cse303 10 ls -l 11 pwd 12 cd /home/perkins 13 pwd 14 cd /home/perkins/cse303 15 pwd 16 ls -l 17 cd / 18 ls -l 19 ls bin 20 pwd 21 cd 22 pwd 23 cd cse303 24 ls -l 25 echo hello there 26 echo hi there >greeting 27 ls -l 28 cat greeting 29 cat greeting >salutation 30 ls -l 31 cat salutation 32 echo howdy there > howdy 33 ls -l 34 diff howdy greeting 35 diff greeting salutation 36 history > lec1.history