BASH/SED - 删除字符串开头和结尾的更好方法？

Question

这是我目前使用的：

   echo /home/user/yolo/123/swag | sed 's,/home/user/,,' | sed 's,swag,,'

有更好的方法吗？

Answer 1

您可以在bash中使用参数扩展：

path=/home/user/yolo/123/swag
path=${path#/home/user/}       # Remove from left.
path=${path%swag}              # Remove from right.
echo "$path"

更新

对于路径数组，代码非常相似：

path=(/home/user/file/1/swag /home/user/file/2/swag /home/user/different/path/swag)
path=(${path[@]#/home/user/})       # Remove from left.
path=(${path[@]%swag})              # Remove from right.
echo "${path[@]}"

BASH/SED - 删除字符串开头和结尾的更好方法？

BASH/SED - Better way of removing the start and end of a string?

bash

sed

更新