如何在 shell 脚本中重复该过程

Question

嗨，我是 shell script.in 我的 shell 脚本的新手，我想重复这个过程。

script.sh
echo "Enter the city name"
read cityname
echo "Enter the state name"
read statename
pig -x mapreduce mb_property_table_updated.pig city=$cityname state=$statename
echo "Do you want to run for another city"

如果是意味着我想再次重复该过程，否则它将移至下一个 process.any 帮助将不胜感激。

Answer 1

使用 while 循环

line=yes
while [ "$line" = yes ]
do
echo "Enter the city name"
read cityname
echo "Enter the state name"
read statename
pig -x mapreduce mb_property_table_updated.pig city=$cityname state=$statename
echo "Do you want to run for another city"
read line
done

并且也在 for 循环中

for((;;))
do
echo "Enter the city name"
read cityname
echo "Enter the state name"
read statename
pig -x mapreduce mb_property_table_updated.pig city=$cityname state=$statename
echo "Do you want to run for another city"
read answer
if [ "$answer" = "yes" ]
then
continue
else
break
fi
done

Answer 2

我会这样做：

while [ "$e" != "n" ]; do
    echo "Enter the city name"
    read cityname
    echo "Enter the state name"
    read statename
    pig -x mapreduce mb_property_table_updated.pig city=$cityname state=$statename
    echo "Do you want to run for another city (y/n)"
    read e
done

Answer 3

为了完整起见，shell中还有一个经常被忽视的until循环。

until [ "$answer" = no ]; do
    echo "Enter the city name"
    read cityname
    echo "Enter the state name"
    read statename
    pig -x mapreduce mb_property_table_updated.pig city=$cityname state=$statename
    echo "Do you want to run for another city"
    read answer
done

如何在 shell 脚本中重复该过程

how to repeat the process in shell script

shell

sh