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Top Forums UNIX for Dummies Questions & Answers File access time does not change on some files Post 302505325 by vipulgupta0 on Wednesday 16th of March 2011 05:19:38 PM
Old 03-16-2011
File access time does not change on some files

Hey All,
I want to get the access time of files in a directory.

I used ls -lu on a directory and picked a file that had the access time of Mar 1 and used cat to get the contents of the file. Then I used the ls -lu again and the access time changed on that file. Perfect !!

Now if I cat a file that has an access time of 3/16 say 2 pm and then check the ls -lu output, the access time does not change.

So, the access time changes on some files and not on the others.

Just to clarify, these files are stored on my local computer.

Any help will be appreciated.

Thanks,
V.
 

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LUTIMES(3)						   BSD Library Functions Manual 						LUTIMES(3)

NAME
lutimes -- set file access and modification times of symlink SYNOPSIS
#include <sys/time.h> int lutimes(const char *path, struct timeval times[2]); DESCRIPTION
The access and modification times of the file named by path are changed as specified by the argument times, even if path specifies a symbolic link (for utimes(2) the times of the file referenced by the symbolic link are changed). If times is NULL, the access and modification times are set to the current time. The caller must be the owner of the file, have permission to write the file, or be the super-user. If times is non-NULL, it is assumed to point to an array of two timeval structures. The access time is set to the value of the first ele- ment, and the modification time is set to the value of the second element. The caller must be the owner of the file or be the super-user. In either case, the inode-change-time of the file is set to the current time. NOTE
Instead of being a system call, lutimes() is emulated using setattrlist(2). Not all file systems support setattrlist(2). RETURN VALUES
Upon successful completion, a value of 0 is returned. Otherwise, -1 is returned and the global variable errno is set to indicate the error. ERRORS
The lutimes() call may return the same errors as utimes(2) and setattrlist(2). SEE ALSO
utimes(2), setattrlist(2) BSD
Aug 13, 2006 BSD
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