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Access time of a file

 
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# 8  
Old 09-05-2008
I am aware of some UNIX-like enviroments where st_atime is not updated after a read. Interix i.e. Microsoft SUA is one and I think Cygwin is another.

What happens if you touch the file using the touch(1) utility?
# 9  
Old 09-05-2008
touch -a will modify the atime. touch access metadata like stat does. It doesn't open the file for read or write.

POSIX says that
Quote:
If neither the -a nor -m options were specified, touch shall behave as if both the -a and -m options were specified.
In other words both filetimes are updated.
# 10  
Old 09-05-2008
fpmurphy:

Code:
u-pl27:~/ZKOUSKOVE/TEZSI_PRIKLADY$ stat example_1.sh
  File: `example_1.sh'
  Size: 918             Blocks: 2          IO Block: 4096   regular file
Device: fh/15d  Inode: 2099578354  Links: 1
Access: (0744/-rwxr--r--)  Uid: (13654/vsetm7am)   Gid: (  200/ nofiles)
Access: 2008-09-02 21:47:11.000000000 +0200
Modify: 2008-09-02 21:47:11.000000000 +0200
Change: 2008-09-02 21:47:11.000000000 +0200
u-pl27:~/ZKOUSKOVE/TEZSI_PRIKLADY$ touch example_1.sh
u-pl27:~/ZKOUSKOVE/TEZSI_PRIKLADY$ stat example_1.sh
  File: `example_1.sh'
  Size: 918             Blocks: 2          IO Block: 4096   regular file
Device: fh/15d  Inode: 2099578354  Links: 1
Access: (0744/-rwxr--r--)  Uid: (13654/vsetm7am)   Gid: (  200/ nofiles)
Access: 2008-09-05 19:54:14.000000000 +0200
Modify: 2008-09-05 19:54:14.000000000 +0200
Change: 2008-09-05 19:54:14.000000000 +0200

# 11  
Old 09-06-2008
MartyIX, are you on a Solaris 10 box with a ZFS filesystem?

I ask because the output of the stat utlity looks like that of Solaris and ZFS has an option to turn off atime updating.
# 12  
Old 09-06-2008
@fpmurphy: uname command writes:
Code:
GNU/Linux 2.6.22-p4smp

Last edited by rbatte1; 08-09-2016 at 05:02 AM.. Reason: Added CODE tags
 
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