Computer Science - Unix - Discussion

Explain how?

How touch command update access?

I agree with Reetu

Touch:

-a, change the access time only.

-c, if the file does not exist, do not create it and do not report this condition.

-d date_time, use the date_time specified to update the access and modification times.

-m, change the modification time only.

-r file, use the access and modification times of file.

-t time, use the time specified (in the format below) to update the access and modification times.

How touch command update access of file?

There are various options with touch I will be talking about -m (modification time).

Let say you created a file and modified it at 12.

Use the command "stat file_name" it will give details about access, modify and change time it will show the modify time as 12.

Now let say at 12 : 30 you enter the command "touch -m file_name" it will change the modify time to 12 :30.

You can check that by "stat file_name".