1 echo $PATH 2 echo $foo 3 $k=1 4 k=1 5 j=2 6 echo $k 7 echo $j 8 echo $j+$k 9 sum=$j+$k 10 echo $sum 11 (( sum=$j+$k )) 12 echo $sum 13 (( xyzzy=(($j+$k)) )) 14 echo $xyzzy 15 (( ans=j+k )) 16 echo $ans 17 ls 18 for f in *; do echo $f; done 19 history > lec4.history 20 exit 21 cd cse374/ 22 ls -l 23 emacs & 24 cat cdls 25 ./cdls 26 ls 27 tar xvf lec3scripts.tar 28 cat listhome 29 ls -l 30 cat dcdls 31 ls -l 32 ./dcdls old '*.pdf' 33 ls old 34 ./dcdls .. old 35 cd .. 36 cse374/dcdls cse374 old 37 cd cse374/ 38 cat dcdls 39 echo $# 40 [[ 1 == 1 ]] 41 echo $? 42 [[ 1 == 0 ]] 43 echo $? 44 [[ 1 != 0 ]] 45 echo $? 46 cat make_thumbnail1 47 ls 48 ./make_thumbnail1 mtn.jpg tinymtn.jpg 49 ls -l 50 ./make_thumbnail1 51 cat make_thumbnail1 52 cat make_thumbnail2 53 cat countdown 54 ./countdown 55 ./countdown foo 56 ./countdown one duce III quatro 0x5 "random numbers" 17 42 57 foo=17 58 echo foo 59 echo $foo 60 bar=42 61 echo $bar 62 foo=bar 63 echo $foo 64 foo=$bar 65 echo $foo 66 f=3 67 echo $f 68 echo $foo 69 echo $fo 70 echo ${f}oo 71 echo $saywhat 72 set 73 set | more 74 echo $PATH 75 ls 76 echo $PS1 77 PS1="yeah, whadda ya want? " 78 ls 79 PS1="yes, master, what is thy command? " 80 PS1="" 81 ls 82 ? 83 PS1="> " 84 echo $HOME 85 echo $SHELL 86 echo $foo 87 echo $PATH 88 bash 89 exit