I want to copy a files of particular date from one directory to another directory. Can anyone suggest me the Unix command for that ?

  • Can you narrow down your question with example dates and directories? – Jeff Schaller Dec 28 '16 at 23:12

Have a look at the manpage of find, which has parameters like -atime, -mtime or -ctime to find files which got accessed, modified or changed at some given time, then you can further use the -exec option to copy these files.

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The best way to do this kind of operation is using the find command. It has lots of approaches; I will explain two of these:

1) Relative Time Intervals
In this approach, you can specify exactly the begin and end timestamps and than filter out every file not modified/accessed/changed during that period. You can do that using the touch command, saving a file with a particular timestamp.
In the next example we create two markers (timestamp_begin_file and timestamp_end_file), set to 3 HOURS AGO and 1 HOUR AGO. Then we user the newerct and ! newerct options to select files newer then 3 hours and not newer then 1 hour (we just take a look at change time in this example). All files selected will be copied in $DESTINATION_PATH folder.

touch -t $(date -d '3 HOUR AGO' +%Y%m%d%H%M.%S) timestamp_begin_file
touch -t $(date -d '1 HOUR AGO' +%Y%m%d%H%M.%S) timestamp_end_file
find "$FOLDER" -newerct timestamp_begin_file ! -newermt timestamp_end_file -exec cp {} $DESTINATION_PATH \;

2) Absolute Time Intervals
You can use newermt options to filter out files you don't need in a specific interval of dates. Here we select only files modified during the day of 2007-06-07:

find . -type f -newermt 2007-06-07 ! -newermt 2007-06-08 -exec cp {} $DESTINATION_PATH \;  

As I said, lots of other alternatives exist (as @Jaleks suggested, -a/m/ctime, too, but due to lack of information, we cannot know which case fits for you).

For more info about time filtering in find, take a look at the manpage of find

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