我想编写一个
shell脚本来显示一个用户输入的目录列表,然后让用户根据目录数目选择一个索引号的目录之一
我认为这是一种数组操作,但我不知道如何在shell脚本中这样做
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!
$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/!
