Create file with date bash

Different format codes or characters can be used with the date options to generate the formatted output. Some common options and format types are mentioned below. Each part of date and time values can be printed separately by using different data options.

The following command will print the date value only. The current date and time value can be changed by using -s option. Sometimes we need to find out the future or previous date and time. The following commands will calculate the date and time after 15 days and before 15 days. According to UNIX epoch time, the time value is calculated in seconds from the date, 1 st January Velthune Creation time, Access time, Modification time.

However depending on the way the filesystem is configured these values may or may not be accurate. For instance, many people disable writing last access time to files to save on the extra disk writes. POSIX standards define ctime as change time. This is when some file attribute changes, generally. I don't know the standards, but the ctime here is after the atime. I would assume creation time should be the oldest What's the difference between change time and modification time?

Show 1 more comment. The fact just like what he said. When I do stat myfile. Unfortunately, it has no value. Why is that row there?

It is a placeholder for another file system that able to store creation date. I can't vouch for the performance boost, but I read a guide for SSD's that recommended noatime, so this worked for me. So no, you can't. GustavoH GustavoH 2 2 silver badges 9 9 bronze badges. It's not necessarily the creation time. It seems ls -l displays Modify time, not Creation or Birth time — truf. As mikyra explained, creation date time is not stored anywhere. Luca Davanzo Luca Davanzo Community Bot 1 1 1 silver badge.

Mike Chen Mike Chen 2 2 silver badges 4 4 bronze badges. Not pleasing to most because it requires sudo and debugfs. Zibri Zibri 7, 2 2 gold badges 45 45 silver badges 40 40 bronze badges. Rocky Li 4, 1 1 gold badge 13 13 silver badges 27 27 bronze badges. Axoloti Axoloti 1. The -c switch tells you when the permissions were last changed, -a tests the most recent access time, and -m tests the modification time.

The filesystem used by most flavors of Linux ext3 doesn't support a "creation time" record. However, if you want to calculate the elapsed days argument for one of the -atime , -ctime , -mtime parameters, you can use the following expression. Update: subtract one from the result to align with find 's date rounding.

This will work if your version of find doesn't support the -newerXY predicates mentioned in Arve:'s answer. With the -atime, -ctime, and -mtime switches to find, you can get close to what you want to achieve. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to use 'find' to search for files created on a specific date? Asked 13 years, 3 months ago. Active 6 years ago.

Viewed k times. Add a comment. Active Oldest Votes. Arve Arve 3, 1 1 gold badge 15 15 silver badges 4 4 bronze badges. My version of find GNU 4. Is there a particular minimum version needed?

Or is it a case of compiling find with a special configure switch? The version of find I have locally -- GNU 4.