提示用户选择一个带有 bash 脚本的目录并读取结果
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/3200252/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Prompt user to select a directory with a bash script and read result
提问by John Ballinger
I want to be read a dir with a bash script (actually I am using zsh).
我想用 bash 脚本读取目录（实际上我正在使用 zsh）。
I want to list the current folders in the same dir and display it to the user asking them to enter a number to select the correct folder.
我想列出同一目录中的当前文件夹并将其显示给用户，要求他们输入一个数字来选择正确的文件夹。
Please select a Folder eg, 1,2,3.
1. Folder Name 1 (this should the actual name of the folder in the dir
2. Folder 2
3. Folder 3.
I would like to also be able to convert the input eg 1. Back to the actual folder name so I can
我还希望能够转换输入，例如 1. 回到实际的文件夹名称，以便我可以
cd ./$foldername/
Thanks for you help. Cheers, John.
谢谢你的帮助。干杯，约翰。
回答by Chris Johnsen
Unless your formatting requirements are very strict, you can probably just use bash's selectconstruct.
除非您的格式要求非常严格，否则您可能只使用bash的select构造。
The following code will present a menu of all the directories in the current directory and then chdir to the selected one:
以下代码将显示当前目录中所有目录的菜单，然后 chdir 到选定的目录：
printf "Please select folder:\n"
select d in */; do test -n "$d" && break; echo ">>> Invalid Selection"; done
cd "$d" && pwd
回答by amphetamachine
#!/bin/bash
dirs=(*/)
read -p "$(
f=0
for dirname in "${dirs[@]}" ; do
echo "$((++f)): $dirname"
done
echo -ne 'Please select a directory > '
)" selection
selected_dir="${dirs[$((selection-1))]}"
echo "You selected '$selected_dir'"
回答by Ragav
Saw this snippet @ some stack link dunno exactly..though might be useful
看到这个片段@一些堆栈链接不知道到底..虽然可能有用
#! /bin/bash
# customize with your own.
options=(backup_*/)
menu() {
clear
echo "Avaliable options:"
for i in ${!options[@]}; do
printf "%3d%s) %s\n" $((i+1)) "${choices[i]:- }" "${options[i]}"
done
[[ "$msg" ]] && echo "$msg"; :
}
prompt="Check an option (again to uncheck, ENTER when done): "
while menu && read -rp "$prompt" num && [[ "$num" ]]; do
[[ "$num" != *[![:digit:]]* ]] && (( num > 0 && num <= ${#options[@]} )) || {
msg="Invalid option: $num"; continue
}
((num--)); msg="${options[num]} was ${choices[num]:+un}checked"
[[ "${choices[num]}" ]] && choices[num]="" || choices[num]="[+]"
done
printf "You selected"; msg=" nothing"
for i in ${!options[@]}; do
[[ "${choices[i]}" ]] && { printf " %s" "${options[i]}"; msg=""; }
done
echo "$msg"
