2
votes
1answer
25 views

How does the system know when a file has been modified? In particular memory mapped files

If I am looking at a process from outside the process how can I tell which files it modifies? One thing I can do is track calls to write, but a process can map a file to memory and write to the ...
2
votes
1answer
47 views

Delete *.txt files by date between MMDDYYYY and MMDDYYYYY

How can I use rm to delete *.txt files between MMDDYYYY and MMDDYYYY ?
2
votes
2answers
92 views

How can I restore file timestamps of video recordings using the embedded metadata?

I'm looking for a command that will read the metadata of a ‘*.mp4’ file and touch the file's timestamp with the creation time of the video. The command should be read-only with respect to the file ...
2
votes
2answers
58 views

How to change “date modified” of multiple folders, to be the same of that of a .mkv that's inside each one, using Cygwin

How to change "date modified" of multiple folders to be the same of that of the .mkv that's inside each one. eg. there's folder1 which contains a file 1.mkv folder1: 2/17/14 1.mkv: 1/6/12 I want ...
4
votes
2answers
72 views

In Linux Fedora, How can I select files to move by time interval

How can I select and move files that were written in a specified time interval, such as 1530 to 1730 local time on a recent date? Background: I use Linux Fedora 12, and I have made my first, and long ...
3
votes
1answer
51 views

timestamp of newly created file is in the future

On my machine at work I experience weird timestamps of files. This is bothering me, because it messes with make. To reproduce the issue, this suffices: $ touch foo $ stat -c %y foo 2014-01-31 ...
3
votes
2answers
95 views

Identify and assign most recent file to shell variable

I have a directory of .jpg files that continuously grows. I want to copy the most recent one elsewhere. This is what I currently have and it works, just curious if there's a better way to identify the ...
1
vote
1answer
77 views

touch and tar from a text file

Am trying to zip a certain number of files and am stuck at below point, ls -lrt /lag/cnn/*/*/*/adb.tar.gz | grep -nri ABC >> sample.txt In sample.txt i got filesNames on which i have to do ...
7
votes
2answers
98 views

What counts as a file modification or change?

Does renaming affect the file modify or access time? Is there a list somewhere of what changes which times?
3
votes
2answers
74 views

Is there any mitigation against touch date/time forgery?

I have been using touch -t to change time of a file when I started using Linux, is there any mitigation against touch date/time forgery? Like, echoing original created date and time, even after using ...
2
votes
2answers
183 views

get age of given file

How can I get the age of a given file in, at least, days? I'm well aware of ls -lh and similar commands. I want something that will work sort of like this: getfage <FILE> # prints out '12d' ...
4
votes
3answers
127 views

What could be the use case of changing modified time of a file to the future?

I was reading through the man page of ls on UNIX, specifically OS X Mavericks. This got me intrigued: If the modification time of the file is more than 6 months in the past or future, then the ...
16
votes
4answers
5k views

How to find creation date of file?

I want to find out the creation date of particular file, not modification date or access date. I have tried with ls -ltrh and stat filename.
3
votes
3answers
1k views

How can I change the date modified of a folder to the last changed file inside? [duplicate]

In my media center directory all modified times of my folders are somehow not the desired date. How can I change all modified times of the main folders to the modified time of the newest media-file ...
15
votes
3answers
1k views

How does touch -t work internally?

How does touch -t command works exactly, internally (I tried to find its source code but couldn't)?
0
votes
2answers
1k views

Solaris 10 modified time

In Solaris 8, when we access the file, the access time changes but modified time remains same. But in Solaris 10, we see that both access and modified time changes when accessing the file. We checked ...
3
votes
4answers
943 views

Modification and Access time of a file?

Is it possible to change the file modification time without changing the file acess time?
1
vote
1answer
365 views

rename files maching specific mtime value within directory

I use simple set of shell commands to in order to create mysqldumps daily. The script is called by cron daemon. It looks like: presentdate="`date +%d-%m-%Y_%H:%M.%S`" basedir="/var/db_my_backup" ...
1
vote
2answers
310 views

Remove oldest folders + files (50GB) from a folder when share/HD reaches 95% full capacity

I have a big share (~5TB) that is getting full. Now I want to make a script that deletes data from 2 specified folders. But this need to be the oldest files/folders and it need to stop when ~50GB has ...
2
votes
3answers
951 views

How do I mass-convert the “last modified” dates in a particular directory?

For example, say, I know that my time-offsets are off by several hours (perhaps because my system clock was a few hours ahead at a certain time). In that case, how would I mass-change the "last ...
2
votes
2answers
278 views

find command for the newest 500 files in a directory tree and also be POSIX compliant

I am looking for a single line shell script or unix command to find the newest 500 files in a directory. Major constraints are it should be POSIX complaint and the directory can have tons of files.
3
votes
1answer
1k views

See if file has been copied to USB

Is there a way to see if a file has been copied to an USB drive? (Ex: I have the file secret.db and I suppose that my friend has copied it into his USB drive. With stat $filename I cannot see the ...
3
votes
3answers
4k views

How can I change 'change' date of file?

How can I change 'change' date? $ touch -t 9901010000 test;stat test File: `test' Size: 0 Blocks: 0 IO Block: 4096 regular empty file Device: fe01h/65025d Inode: 11279017 ...
6
votes
7answers
2k views

Bash, remove oldest files

I`m trying to delete old files from directory and leave only 3 newest files. cd /home/user1/test while [ `ls -lAR | grep ^- | wc -l` < 3 ] ; do rm `ls -t1 /home/user/test | tail -1` ...
13
votes
4answers
5k views

How can I do a “copy if changed” operation?

I would like to copy a set of files from directory A to directory B, with the caveat that if a file in directory A is identical to a file in directory B, that file should not be copied (and thus its ...
14
votes
3answers
4k views

How to list files that were changed in a certain range of time?

How can I list recursively all files that were changed between 22.12.2011 and 24.12.2011?
2
votes
3answers
3k views

How to delete the oldest directory in a given directory? [duplicate]

Possible Duplicate: Shell script for moving oldest files? I have a backup directory that stores x other directories that require backuping. I need something that will run before another ...
2
votes
4answers
480 views

Access the last file (alphabetically) in a directory

I'm trying to open a file with vim from the command line, the file is in a directory filled with automatically generated files that are prepended with a time stamp. Since I don't know the time stamps ...
27
votes
3answers
86k views

Get file created/creation time? [duplicate]

Possible Duplicate: How do I do a ls and then sort the results by date created? Is there a command in Linux which displays when the file was created ? I see that ls -l gives the last ...
7
votes
6answers
6k views

Shell script for moving oldest files?

How do I write a script for moving just the 20 oldest files from one folder to another? Is there a way to grab the oldest files in a folder?
3
votes
2answers
336 views

On touching a new file why is mtime and ctime older than atime?

I have this: $ ls -l ff ls: cannot access ff: No such file or directory $ touch ff $ stat ff File: `ff' Size: 0 Blocks: 0 IO Block: 4096 regular empty file Device: ...
25
votes
2answers
17k views

How do I do a ls and then sort the results by date created?

In what order are the dated ordered by? Certainly not alphanumeric order. ls -lt sorts by modification time. But I need creation time.
3
votes
3answers
2k views

Delete files based on year

I need to delete all files in a directory that were created in 2009. What command can I use to do that?