How do you check whether a path is absolute or relative, using C on Linux?
如何在Linux上使用C来检查路径是绝对路径还是相对路径？
4 个解决方案
#1
17
Absolute paths tend to start with the / character. Anything else is pretty much relative from the working directory.
绝对路径往往以/字符开头。其他任何东西都与工作目录非常相关。
Even directories with .. sequences in them are considered absolute if they start with / since they end up at the same position in the file system (unless you change links and things but that's beyond the discussion of absolute and relative).
即使带有..序列的目录，如果它们以/开头，也会被认为是绝对的，因为它们最终位于文件系统中的相同位置（除非您更改链接和事物，但这超出了绝对和相对的讨论范围）。
#2
9
It's absolute if it begins with a /, otherwise relative.
如果它以/开头，则是绝对的，否则相对。
#3
4
Check if the path starts with / or not. if path starts with / you can assume it is absolute.
检查路径是否以/或不是。如果路径以/开头，你可以认为它是绝对的。
#4
3
Check if the path starts with / or not. if path starts with / you can assume it is absolute otherwise it's relative means it will update from pwd(present working directory) But in Absolute case path will update relative to root directory
检查路径是否以/或不是。如果路径以/开头，你可以认为它是绝对的，否则它的相对意味着它将从pwd（当前工作目录）更新但是在绝对情况下路径将相对于根目录更新
#1
17
Absolute paths tend to start with the / character. Anything else is pretty much relative from the working directory.
绝对路径往往以/字符开头。其他任何东西都与工作目录非常相关。
Even directories with .. sequences in them are considered absolute if they start with / since they end up at the same position in the file system (unless you change links and things but that's beyond the discussion of absolute and relative).
即使带有..序列的目录，如果它们以/开头，也会被认为是绝对的，因为它们最终位于文件系统中的相同位置（除非您更改链接和事物，但这超出了绝对和相对的讨论范围）。
#2
9
It's absolute if it begins with a /, otherwise relative.
如果它以/开头，则是绝对的，否则相对。
#3
4
Check if the path starts with / or not. if path starts with / you can assume it is absolute.
检查路径是否以/或不是。如果路径以/开头，你可以认为它是绝对的。
#4
3
Check if the path starts with / or not. if path starts with / you can assume it is absolute otherwise it's relative means it will update from pwd(present working directory) But in Absolute case path will update relative to root directory
检查路径是否以/或不是。如果路径以/开头，你可以认为它是绝对的，否则它的相对意味着它将从pwd（当前工作目录）更新但是在绝对情况下路径将相对于根目录更新