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Top Forums Shell Programming and Scripting Getting canonical path with sed Post 302972831 by chebarbudo on Wednesday 11th of May 2016 06:33:25 AM
Old 05-11-2016
Impressive!
Thanks Corona688
My notes:
  1. If path is / or ., it becomes empty which makes it impossible to differentiate the root directory from the current directory.
  2. If a path starts with ../, that first element is stripped. But ../brother and brother are not the same address.
I'm working on an edit and will submit as soon as I can.
 

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rmdir(2)							System Calls Manual							  rmdir(2)

NAME
rmdir() - remove a directory file SYNOPSIS
DESCRIPTION
The system call removes a directory file whose name is given by path. The directory must be empty (except for the files and before it can be removed. RETURN VALUE
returns the following values: Successful completion. Failure. is set to indicate the error. ERRORS
If fails, is set to one of the following values. [EACCES] A component of the path prefix denies search permission. [EACCES] Write permission is denied on the directory containing the link to be removed. [EACCES] The process does not have read/write access permission to the parent directory. [EBUSY] The directory to be removed is the mount point for a mounted file system. [EBUSY] The path is the current working directory. [EEXIST] The named directory is not empty. It contains files other than and [EFAULT] path points outside the process's allocated address space. The reliable detection of this error is implementation- dependent. [ELOOP] Too many symbolic links were encountered in translating the path name. [ENAMETOOLONG] The length of the specified path name exceeds bytes, or the length of a component of the path name exceeds bytes while is in effect. [ENOENT] The named file does not exist. [ENOTDIR] A component of the path is not a directory. [EPERM] The directory containing the directory to be removed has the sticky bit set and neither the containing directory nor the directory to be removed are owned by the effective user ID. [EROFS] The directory entry to be removed resides on a read-only file system. AUTHOR
was developed by the University of California, Berkeley and HP. SEE ALSO
mkdir(2), unlink(2), remove(3C), privileges(5). STANDARDS CONFORMANCE
rmdir(2)
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