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/!
