shell 循环

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#遍历输出脚本的参数
for i in $@; do
  echo $i
done

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

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for i in {1..5}; do
  echo "Welcome $i"
done

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for i in {5..15..3}; do
  echo "number is $i"
done

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 for f in *.c
 do
   gcc -o ${f%.c} $f
 done

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while [ "$ans" != "yes" ]
do
  read -p "please input yes to exit loop:" ans
done
# 只有当ans不是yes时，循环就终止。

# or
num=1
while [ $num -lt 10 ]
do
  echo $num
  ((num=$num+2))
done

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num=1
#  当command不为0时循环
until [ $num -gt 10 ]
do
  echo until $num
  ((num=$num+2))
done