Reading a field from the last line, after ls -lrt

Hi,

can any one help me out with this one,

After typing in "ls -lrt", from the displayed contents, (i.e.)

Unix$>ls -lrt
-rw-r--r--   1 user1  group        2 Apr 12 15:06 123.dat
-rw-r--r--   1 user1  group        2 Apr 12 15:07 234.dat
-rw-r--r--   1 user1  group        2 Apr 12 15:08 345.dat
-rw-r--r--   1 user1  group        2 Apr 12 15:09 456.dat

I would like to read the latest updated file name, as here that would be "456.dat", using a shell script.

Thanks in advance.
ch_kaushikAsked:
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sunnycoderCommented:
Hi ch_kaushik,

ls -lrt | tail -1

if you wish to get only the name

 ls -lrt | tail -1| awk ' { print $9 } '

Cheers!
Sunnycoder
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ch_kaushikAuthor Commented:
Thanks Sunnycoder!

ch_kaushik
0
ch_kaushikAuthor Commented:
Sunnycoder one more point if you could reply,

How to insert the current date format in between a filename?

What I am trying is,

Date=`date '+%Y%m%d'`
File=`ls -lrt | tail -1 | awk '{print $9}'`
mv $File $HOME/abc/NewFile_$Date_update.dat


But it's failing ... any clues ...
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