我想暂停shell脚本中的输入,并提示用户进行选择。标准的是、否或取消类型问题。如何在典型的bash提示符中完成此操作?
当前回答
使用PyInquirer的一行python替代方案
python3 -c 'import PyInquirer; print(PyInquirer.prompt([{"type":"confirm", "message":"Do you want to continue?", "name":"r"}]).get("r"))'
它支持yes/no/cancel(intr,CTRL+C)。
其他回答
echo "Please enter some input: "
read input_variable
echo "You entered: $input_variable"
使用read命令:
echo Would you like to install? "(Y or N)"
read x
# now check if $x is "y"
if [ "$x" = "y" ]; then
# do something here!
fi
然后你需要的所有其他东西
inquire () {
echo -n "$1 [y/n]? "
read answer
finish="-1"
while [ "$finish" = '-1' ]
do
finish="1"
if [ "$answer" = '' ];
then
answer=""
else
case $answer in
y | Y | yes | YES ) answer="y";;
n | N | no | NO ) answer="n";;
*) finish="-1";
echo -n 'Invalid response -- please reenter:';
read answer;;
esac
fi
done
}
... other stuff
inquire "Install now?"
...
我为回答是/否问题编写了一个小脚本:https://github.com/optimistiCli/getans
例子:
#!/bin/bash
if ! getans.sh 'Shall we proceed?' y ; then
echo "User said “NO”"
exit 1
fi
echo "User said “YES”"
# do something usefull
exit 0
直接链接:https://github.com/optimistiCli/getans/raw/main/getans.sh
read -e -p "Enter your choice: " choice
-e选项允许用户使用箭头键编辑输入。
如果要使用建议作为输入:
read -e -i "yes" -p "Enter your choice: " choice
-i选项打印提示性输入。