HOW TO FIND THE LATEST FILE BY FILES'S EXTENSION

[vaanand]

I am a UNIX newbie so excue me for my simple question. I am using HP-UNIX. The problem is I want to log into a remote server and pick out one file whose file extesion is the latest date and FTP it back into my local server . And I also want to get the name of the file I picked so that I have to use this file name for some other purpose. The whole thing should be korn shell script so that I can automate these processes.For example in the remote server there could be 4 or 5 files with same name but with different date extension as zzz.20010405,zzz.200010404,zzz.20010403. I need pick out the highest dated file extension. My script should pick zzz.20010405 and FTP this file to my local server and I need to get this file name into variable for other processing.

2) problem 2 is after FTP ing the largest date extension file to my local server i need to move these file in the remote server to another archive directory in the same remote server from Home directory of the remote server.

Thanks in advance.
Andy

 

[Krunek]

Hi, vaanand!

Please, try this command for the first problem:

ls -1 | awk '$1 > prev { prev = $1 } END { print prev }'

$1 in awk script can be $0. The highest dated file has name that is last in alphabetic order - awk script will pick up his name.

This command works if in directory are only zzz.* files.

Bye!

KP.

 

[lleemon]

You can have other files in the directory also if the filename searching is the same you can do the following:
ls -1 zzz* | awk '$1 > prev { prev = $1 } END { print prev }'

As for #2, is your output in /home/user and you want it to be in say /home/user/temp?

You could use remsh if you have this access.
code:
remsh remoteserver -l username "command to run"

So say you have 2 unix boxes: unix1 and unix2. You also have accounts on both as User1.
You need to edit the .rhosts file on both boxes in your home directory to have the following:

unix1 .rhosts file:
unix2 User1

unix2 .rhosts file:
unix1 User1

##NOTE: you could do + + to allow all access.

Once this is done just do the following from unix1:
remsh unix2 -l User1 "mv /home/user/zzz.20010101 /home/user/temp/."

##NOTE: I didn't test this but should point you in a direction.