By using stat command, you can see that information.
If you change atime to off, the Access part will not be update when you access the file and you will gain minor to none performance depending on the filesystem structure.
i have used all forms of the unix find command.. and right now this is the only command i can think of that might have this option..:
if i use mtime i am looking at a time interval.. but if i wanted to find out intervals of access, change and modification according to when a file changed size... (4 Replies)
Hey,
First of all I want to know How do I see the atime of a file ?? Whats the command ??
I think ls -l shows the last modified time right ? Because when I use cat to read a file, the timestamp shown by ls -l does not change.
Its not ls -lu ! man ls did not help ! How do I see the last... (8 Replies)
Unix keeps 3 timestamps for each file: mtime, ctime, and atime. Most people seem to understand atime (access time), it is when the file was last read. There does seem to be some confusion between mtime and ctime though. ctime is the inode change time while mtime is the file modification time. ... (2 Replies)
hi, in trying to maintain your directories, one needs to do some housekeeping like removing old files. the tool "find" comes in handy. but how would you decide which option to use when it comes to, say, deleting files that are older than 5 days?
mtime - last modified
atime - last accessed... (4 Replies)
I need to sort through a volume that contains video files by access time and delete files that have not been accessed over x days. I have to use the access time as video files are originals that do not get modified, just read
Testing commands on a local test folder...
$ date
Wed Sep 28... (10 Replies)
Hi,
ctime is the inode change time. If reading a file, its atime will be updated, which should cause inode member i_atime changed, which is an inode change. So ctime should also be updated. But if I try to ls a directory on redhat, only the directory atime gets updated, not ctime. Why?
THANKS! (2 Replies)
Following this thread:
https://www.unix.com/ip-networking/1935-automated-ftp-task.html
I have created the following script:
#! /bin/ksh
HOST=ftp.mywebsite2.com
USER=astrocloud
PASSWD=8****
exec 4>&1
ftp -nv >&4 2>&4 |&
print -p open $HOST
print -p user $USER $PASSWD
print -p cd... (3 Replies)
Hello!
I have ZFS-based flash archive (flar file). I need to install to it several additional packages and patches. As I know, it is possible for USF-based flar, but how to do it with ZFS-based one? (0 Replies)
Discussion started by: sluge
0 Replies
LEARN ABOUT PHP
touch
TOUCH(3) 1 TOUCH(3)touch - Sets access and modification time of fileSYNOPSIS
bool touch (string $filename, [int $time = time()], [int $atime])
DESCRIPTION
Attempts to set the access and modification times of the file named in the $filename parameter to the value given in $time. Note that the
access time is always modified, regardless of the number of parameters.
If the file does not exist, it will be created.
PARAMETERS
o $filename
- The name of the file being touched.
o $time
- The touch time. If $time is not supplied, the current system time is used.
o $atime
- If present, the access time of the given filename is set to the value of $atime. Otherwise, it is set to the value passed to the
$time parameter. If neither are present, the current system time is used.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | It became possible to change the modification |
| | time of a directory under Windows. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
touch(3) example
<?php
if (touch($filename)) {
echo $filename . ' modification time has been changed to present time';
} else {
echo 'Sorry, could not change modification time of ' . $filename;
}
?>
Example #2
touch(3) using the $time parameter
<?php
// This is the touch time, we'll set it to one hour in the past.
$time = time() - 3600;
// Touch the file
if (!touch('some_file.txt', $time)) {
echo 'Whoops, something went wrong...';
} else {
echo 'Touched file with success';
}
?>
NOTES
Note
Note that time resolution may differ from one file system to another.
Warning
Prior to PHP 5.3.0 it was not possible to change the modification time of a directory with this function under Windows.
PHP Documentation Group TOUCH(3)