SCO Unix inode structure.


 
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# 1  
Old 05-24-2007
SCO Unix inode structure.

I have read quite a few threads here about the unix file creation date. I was interested in finding how to display it using a unix command. find did not help me so i looked at man inode. I found direction to htino.h which is described as the
structure of the inode for S51K (UNIX), HTFS, EAFS and AFS. In this file I found
a structure dinode32 which contained the atime, mtime, ctime, and crtime with the crtime being the "/*time file was created*/".

Does anyone know if this is being used by anyone and whether or not this is true for linux?

thank you
# 2  
Old 05-24-2007
struct stat from Linux looks like

Code:
struct stat {
    dev_t     st_dev;     /* ID of device containing file */
    ino_t     st_ino;     /* inode number */
    mode_t    st_mode;    /* protection */
    nlink_t   st_nlink;   /* number of hard links */
    uid_t     st_uid;     /* user ID of owner */
    gid_t     st_gid;     /* group ID of owner */
    dev_t     st_rdev;    /* device ID (if special file) */
    off_t     st_size;    /* total size, in bytes */
    blksize_t st_blksize; /* blocksize for filesystem I/O */
    blkcnt_t  st_blocks;  /* number of blocks allocated */
    time_t    st_atime;   /* time of last access */
    time_t    st_mtime;   /* time of last modification */
    time_t    st_ctime;   /* time of last status change */
};

Note, no "st_crtime".
# 3  
Old 05-25-2007
Thank you.
# 4  
Old 05-26-2007
POSIX defines what stat can report - for any UNIX that claims to be POSIX-compliant.
File creation time is nor there. Some file systems may support it. Or not.

This whole thing is a big problem going from UNIX to UNIX - special features one box has that another does not. POSIX is an attempt to create syscall interface definitions that will work on any box that claims compliance. So it becomes possible to port code, for example.
# 5  
Old 05-26-2007
Hi.
Quote:
Originally Posted by rbn
I have read quite a few threads here about the unix file creation date. I was interested in finding how to display it using a unix command ...
You can see if command stat is available in SCO as it is in Linux, but as you see and have seen, there is no creation date. If it is important, the date can be made to be part of the filename, e.g. my_important_stuff_2007.05.26.txt. Here is a stat example:
Code:
% touch t1
% stat t1
  File: `t1'
  Size: 0               Blocks: 0          IO Block: 131072 regular empty file
Device: 811h/2065d      Inode: 397683      Links: 1
Access: (0644/-rw-r--r--)  Uid: ( 1001/ drl)   Gid: ( 1001/ drl)
Access: 2007-05-26 08:39:21.000000000 -0500
Modify: 2007-05-26 08:39:21.000000000 -0500
Change: 2007-05-26 08:39:21.000000000 -0500

cheers, drl
 
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