Shell案例：图案打印

打印三角形图案

#!/bin/bash

echo "Stars"

for (( i=; i<=; i++ ))

do

    for (( j=; j<=i;  j++ ))

    do

     echo -n " *"

    done

    echo ""

done

for (( i=; i>=; i-- ))

do

    for (( j=; j<=i;  j++ ))

    do

     echo -n " *"

    done

    echo ""

done

Shell案例：图案打印

打印菱形案例

#!/bin/bash

MAX_NO=

echo -n "Enter Number between (5 to 9) : "

read MAX_NO

if ! [ $MAX_NO -ge  -a $MAX_NO -le  ] ; then

   echo "???... I ask to enter number between 5 and 9, Try Again"

   exit

fi

clear

for (( i=; i<=MAX_NO; i++ ))

do

    for (( s=MAX_NO; s>=i; s-- ))

    do

       echo -n " "

    done

    for (( j=; j<=i;  j++ ))

    do

     echo -n " ."

    done

    echo ""

done

for (( i=MAX_NO; i>=; i-- ))

do

    for (( s=i; s<=MAX_NO; s++ ))

    do

       echo -n " "

    done

    for (( j=; j<=i;  j++ ))

    do

     echo -n " ."

    done

    echo ""

done

echo -e "Whenever you need help, I will always here"