Hi!! Experts,
Is there any way to find the timestamp when the permission of a file was modified?? I mean no change to file contents.. Just the chnage of permissions.
:) (1 Reply)
Hi,
How I change the timestamp of file to some past date
Let's say I have this file
-rw-r--r-- 1 oracle dba 16587 Apr 11 10:46 create_dev.sql
And I want to change the timestamp to Mar 10th 7:45 PM
So it should appear like this:
-rw-r--r-- 1 oracle dba ... (1 Reply)
Hello,
Alright solution:
I need to move files to a backup folder, changing the datestamp to the current day so that the file stays in the backup folder for the full 30 days before another script removes it. Obviously, any file I move in will preserve the timestamp which is what I *don't* want.... (2 Replies)
Please I am new to Unix and this simple question I am already answered but struggling to find the answer.
I have a data file which contains header record which conatins date timestamp. I need to find a way of simply updating the date time stamp to current date timestamp.
So if the header... (5 Replies)
Hello to all.
I work at AIX system without perl installed and I am restricted user, so I am limited to bash. In script that I am writing, I have to read line from file and transform date that I found inside to Unix timestamp. Line in file look something like this:
Tue Mar 29 06:59:00... (5 Replies)
Greetings,
I have an rsync server that is unable to change the timestamp on any directories inside of cifs mounts. The same thing happens on all of my red hat machines. These machines are all patched, touch -t works on directories inside any other filesystem including NFS mounts.
This is... (0 Replies)
Hi All,
I am new to unix programming. I am trying for a requirement and the requirement goes like this.....
I have a test folder. Which tracks log files. After certain time, the log file is getting overwritten by another file (randomly as the time interval is not periodic). I need to preserve... (2 Replies)
Hi team, i am writing a purge script to delete softlinks and hardlinks on linux system which are 3/10/30 days old. To test the script i need to create links with old timestamp, i am able to cange timestamp for files but not for links.
i tried touch -h option but this option is not available on... (1 Reply)
Hi Friends,
I have the following logfile. Currently time in india is 07/31/2014 12:33:34 and i have the following content in logfile. I want to display only those entries which contain string 'Exception' within last 3 hours. In this case, it would be the last line only
I can get the... (12 Replies)
Discussion started by: srkmish
12 Replies
LEARN ABOUT MOJAVE
touch
TOUCH(1) BSD General Commands Manual TOUCH(1)NAME
touch -- change file access and modification times
SYNOPSIS
touch [-A [-][[hh]mm]SS] [-acfhm] [-r file] [-t [[CC]YY]MMDDhhmm[.SS]] file ...
DESCRIPTION
The touch utility sets the modification and access times of files. If any file does not exist, it is created with default permissions.
By default, touch changes both modification and access times. The -a and -m flags may be used to select the access time or the modification
time individually. Selecting both is equivalent to the default. By default, the timestamps are set to the current time. The -t flag
explicitly specifies a different time, and the -r flag specifies to set the times those of the specified file. The -A flag adjusts the val-
ues by a specified amount.
The following options are available:
-A Adjust the access and modification time stamps for the file by the specified value. This flag is intended for use in modifying files
with incorrectly set time stamps.
The argument is of the form ``[-][[hh]mm]SS'' where each pair of letters represents the following:
- Make the adjustment negative: the new time stamp is set to be before the old one.
hh The number of hours, from 00 to 99.
mm The number of minutes, from 00 to 59.
SS The number of seconds, from 00 to 59.
The -A flag implies the -c flag: if any file specified does not exist, it will be silently ignored.
-a Change the access time of the file. The modification time of the file is not changed unless the -m flag is also specified.
-c Do not create the file if it does not exist. The touch utility does not treat this as an error. No error messages are displayed and
the exit value is not affected.
-f Attempt to force the update, even if the file permissions do not currently permit it.
-h If the file is a symbolic link, change the times of the link itself rather than the file that the link points to. Note that -h
implies -c and thus will not create any new files.
-m Change the modification time of the file. The access time of the file is not changed unless the -a flag is also specified.
-r Use the access and modifications times from the specified file instead of the current time of day.
-t Change the access and modification times to the specified time instead of the current time of day. The argument is of the form
``[[CC]YY]MMDDhhmm[.SS]'' where each pair of letters represents the following:
CC The first two digits of the year (the century).
YY The second two digits of the year. If ``YY'' is specified, but ``CC'' is not, a value for ``YY'' between 69 and 99
results in a ``CC'' value of 19. Otherwise, a ``CC'' value of 20 is used.
MM The month of the year, from 01 to 12.
DD the day of the month, from 01 to 31.
hh The hour of the day, from 00 to 23.
mm The minute of the hour, from 00 to 59.
SS The second of the minute, from 00 to 61.
If the ``CC'' and ``YY'' letter pairs are not specified, the values default to the current year. If the ``SS'' letter pair is not
specified, the value defaults to 0.
EXIT STATUS
The touch utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
The obsolescent form of touch, where a time format is specified as the first argument, is supported. When no -r or -t option is specified,
there are at least two arguments, and the first argument is a string of digits either eight or ten characters in length, the first argument
is interpreted as a time specification of the form ``MMDDhhmm[YY]''.
The ``MM'', ``DD'', ``hh'' and ``mm'' letter pairs are treated as their counterparts specified to the -t option. If the ``YY'' letter pair
is in the range 39 to 99, the year is set to 1939 to 1999, otherwise, the year is set in the 21st century.
SEE ALSO utimes(2)STANDARDS
The touch utility is expected to be a superset of the IEEE Std 1003.2 (``POSIX.2'') specification.
HISTORY
A touch utility appeared in Version 7 AT&T UNIX.
BSD April 28, 1995 BSD