Could someone please explain to me the concept of INodes?
Colour me a DOS/MacOS junkie, but I don't quite understand.
Is there any relation to clusters, or physical distro.?
ty. (3 Replies)
Does anyone know what command I can run to check how many inodes are in use on a specific filesystem. On Data General servers I used to run the df -k command to check the status of the inodes for all file system.s (1 Reply)
hi
i need to find all the files that r linked to the current file as i need to delete the file as well as few of its links :confused:
thnx in advance (1 Reply)
how is the location of inodes in the physical disk.
are they sequential like:
bootblock|superblock|inode1|inode2| ....| datablock1|datablock2|datablock3
or are they distributed among data blocks like:
bootblock|superblock|inode1|datablock1|inode2|datablock2|datablock3|inode3
|datablock4 (3 Replies)
Hi, sorry to have written in other language i think i could do that.
I would to know
A file system use inodes indexed allocation as a method of allocating space.
In the inode blocks are 10 references to direct, 1 indirect reference to a single block, 1 block indirect reference to a reference to... (1 Reply)
Dear Forum,
Please help me i have SUNW,Sun-Fire-V240 with sun solaris 8,if i check inode in /var like below:
# df -F ufs -o i
Filesystem iused ifree %iused Mounted on
/dev/md/dsk/d0 62354 310638 17% /
/dev/md/dsk/d3 372992 0 100% /var... (2 Replies)
How can i trace Inode structure and modify it in UNIX kernel?
We want to change the inode structure in the sense that we want to add a new field to the inode data structure. So we want to know how and where to trace inode (7 Replies)
Discussion started by: Group_Inode
7 Replies
LEARN ABOUT OPENSOLARIS
getcwd
getcwd(3C) Standard C Library Functions getcwd(3C)NAME
getcwd - get pathname of current working directory
SYNOPSIS
#include <unistd.h>
char *getcwd(char *buf, size_t size);
DESCRIPTION
The getcwd() function places an absolute pathname of the current working directory in the array pointed to by buf, and returns buf. The
pathname copied to the array contains no components that are symbolic links. The size argument is the size in bytes of the character array
pointed to by buf and must be at least one greater than the length of the pathname to be returned.
If buf is not a null pointer, the pathname is stored in the space pointed to by buf.
If buf is a null pointer, getcwd() obtains size bytes of space using malloc(3C). The pointer returned by getcwd() can be used as the argu-
ment in a subsequent call to free().
RETURN VALUES
Upon successful completion, getcwd() returns the buf argument. If buf is an invalid destination buffer address, NULL is returned and errno
is set to EFAULT. Otherwise, a null pointer is returned and errno is set to indicate the error.
ERRORS
The getcwd() function will fail if:
EFAULT The buf argument is an invalid destination buffer address.
EINVAL The size argument is equal to 0.
ERANGE The size argument is greater than 0 and less than the length of the pathname plus 1.
The getcwd() function may fail if:
EACCES A parent directory cannot be read to get its name.
ENOMEM Insufficient storage space is available.
EXAMPLES
Example 1 Determine the absolute pathname of the current working directory.
The following example returns a pointer to an array that holds the absolute pathname of the current working directory. The pointer is
returned in the ptr variable, which points to the buf array where the pathname is stored.
#include <stdlib.h>
#include <unistd.h>
...
long size;
char *buf;
char *ptr;
size = pathconf(".", _PC_PATH_MAX);
if ((buf = (char *)malloc((size_t)size)) != NULL)
ptr = getcwd(buf, (size_t)size);
...
Example 2 Print the current working directory.
The following example prints the current working directory.
#include <unistd.h>
#include <stdio.h>
main()
{
char *cwd;
if ((cwd = getcwd(NULL, 64)) == NULL) {
perror("pwd");
exit(2);
}
(void)printf("%s
", cwd);
free(cwd); /* free memory allocated by getcwd() */
return(0);
}
USAGE
Applications should exercise care when using chdir(2) in conjunction with getcwd(). The current working directory is global to all threads
within a process. If more than one thread calls chdir() to change the working directory, a subsequent call to getcwd() could produce unex-
pected results.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO chdir(2), malloc(3C), attributes(5), standards(5)SunOS 5.11 18 Oct 2004 getcwd(3C)