如何在 Bash 中将目录列表存储到数组中(然后将它们打印出来)? [英] How do you store a list of directories into an array in Bash (and then print them out)?

问题描述

我想编写一个shell脚本来显示用户输入的目录列表，然后让用户根据目录的数量选择一个带有索引号的目录

I want to write a shell script to show a list of directories entered by a user and then for a user to select one of the directories with an index number based on how many directories there are

我认为这是某种数组操作，但我不确定如何在 shell 脚本中执行此操作

I'm thinking this is some kind of array operation, but im not sure how to do this in shell script

示例:

> whichdir
There are 3 dirs in the current path
1 dir1
2 dir2
3 dir3
which dir do you want? 
> 3
you selected dir3!

推荐答案

$ ls -a
./ ../ .foo/ bar/ baz qux*
$ shopt -s dotglob
$ shopt -s nullglob
$ array=(*/)
$ for dir in "${array[@]}"; do echo "$dir"; done
.foo/
bar/
$ for dir in */; do echo "$dir"; done
.foo/
bar/
$ PS3="which dir do you want? "
$ echo "There are ${#array[@]} dirs in the current path"; \
select dir in "${array[@]}"; do echo "you selected ${dir}"'!'; break; done
There are 2 dirs in the current path
1) .foo/
2) bar/
which dir do you want? 2
you selected bar/!

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