Bash'for'循环语法？

Question

Bash for循环的语法是什么？

我试过了:

for (($i=0;$i<10;$i ++))
do
    echo $i
done

我收到此错误:

line 1: ((: =0: syntax error: operand expected (error token is "=0")

Answer 1

更换

for (($i=0...

同

for ((i=0;i<10;i++))

Answer 2

便携式方式是:

for i in `seq 0 9`
do
    echo "the i is $i"
done

Answer 3

其他方式

for i in {0..9}
  do
    echo $i
  done