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shell指令碼檔案中for迴圈的兩種寫法

#!/bin/bash

for (( i = 0; i <= 10; i++ )) ;
do
    echo "The value is: $i"
done

echo -e "\nJourneys end in lovers' meeting."
echo -e "A friend in need is a friend indeed.\n"

for num 1 2 3 4 5 ;
do
   echo "The number is: $num"
done

執行結果:

ElonJelinek:Desktop ElonJelinek$ ./test.sh 
The value is: 0
The value is:
1 The value is: 2 The value is: 3 The value is: 4 The value is: 5 The value is: 6 The value is: 7 The value is: 8 The value is: 9 The value is: 10 Journeys end in lovers' meeting. A friend in need is a friend indeed. The number is: 1 The number is: 2 The number is: 3 The number is: 4 The number is:
5 ElonJelinek:Desktop ElonJelinek$