Linux CS226 bai tap vi

CÂU 1 TÌM SỐ LỚN NHẤT A,B,C binbash Day la chu thich chuong trinh hello sh echo n a read a echo n b read b echo n c read c d=a if d lt b ;then d=b fi if d lt c ;then d=c fi echo so lon nhat la d exit 0 CÂU 2 PT AX+B = 0 binbash Day la chu thich chuong trinh hello sh echo n nhap a read a echo n nhap b read b if a eq 0 ;then if b eq 0 ;then echo Phuong trinh vo so nghiem else echo Phuong trinh vo nghiem fi else x=(echo scale=3; ( b).

CÂU : TÌM SỐ LỚN NHẤT A,B,C #!/bin/bash #Day la chu thich:chuong trinh hello.sh echo -n "a:" read a echo -n "b:" read b echo -n "c:" read c d=$a if [ "$d" -lt "$b" ];then d=$b fi if [ "$d" -lt "$c" ];then d=$c fi echo "so lon nhat la : $d" exit CÂU : PT AX+B = #!/bin/bash #Day la chu thich:chuong trinh hello.sh echo -n "nhap a:" read a echo -n "nhap b:" read b if [ $a -eq ];then if [ $b -eq ];then echo "Phuong trinh vo so nghiem" else echo "Phuong trinh vo nghiem" fi else x=$(echo "scale=3; (-$b)/$a" | bc) echo "Phuong trinh co nghiem x = $x" fi exit CÂU 3: PHƯƠNG TRÌNH BÂC #!/bin/bash #Day la chu thich:chuong trinh hello.sh echo -n "a=" read a echo -n "b=" read b echo -n "c=" read c delta=$(echo "$b^2 – 4*$a*$c" | bc) if [ $delta -lt ] then echo "pt vo nghiem" elif [ "$delta" -eq ] then echo -n "pt co nghiem kep x= " x=$(echo "scale=2; -$b/(2*$a)" | bc) echo "$x" else echo "phuong trinh co nghiem" x1=$(echo "scale=2; -($b + sqrt($delta))/(2*$a)" | bc) echo "x1= $x" x2=$(echo "scale=2; -($b – sqrt($delta))/(2*$a)" | bc) echo "x2= $x2" CÂU : #!/bin/bash #Day la chu thich:chuong trinh hello.sh echo “Chuong trinh tinh tong 1- n” read n index=0 tong=0 while [ $index -lt $n ] index=$(($index + 1)) tong=$(($tong + $index)) done echo “Tong 1-$n= $tong” exit CÂU #!/bin/bash #Day la chu thich:chuong trinh hello.sh echo “Chuong trinh tinh day thua n” read n index=0 s=1 while [ $index -lt $n ] index=$(($index + 1)) s=$(($s * $index)) done echo “$n != $s” exit CÂU #!/bin/bash #Day la chu thich:chuong trinh hello.sh echo "Nhap vao mot so duong:" read so if [ $so -lt ] then echo "$so khong phai so nguyen to" else tong=0 for (( i=2;i