UGU Unix Guru Universe
For Unix Admins, By Unix Admins
Follow ugucom on Twitter      Search  in 
Home
BEGINNERS & USERS

Events

Internet
 
 Linux
BEGINNERS & USERS
Software
Linux Vendors
Usenet NewsGroups
Books & Publications
 
 Shop
Cool Admin Gifts!
Gadgets
T-Shirts
Books
 
 Unix Guru Universe
About
Add Link
Feedback
 
 
UGU: Unix Guru Universe - Unix Tip #4389- March 18, 2014 - Home : Help : Today's Tip
Unix Tip #4389- March 18, 2014

ANOTHER FILE REVERSAL


For those that don't have
the tac command, to reverse
a file in UNIX, you could use:

cat | awk '{ line[NR] = $0;} END
{for(i=NR;i>1;i--) print line[i] }'


This tip generously supported by: chandramohan_k@infy.com


NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


LAST 5 TIPS
4388 - OOPS.. RM STAR
4387 - HOW MANY BITS?
4386 - DAILY BACKUP CHECK
4385 - OUTPUT A FILE IN REVERSE
4384 - USE DU TO FIND FILES


I want to SUBSCRIBE and get a UGU Tip everyday.
I want to UNSUBSCRIBE and NOT get a UGU Tip everyday.

If you have a UNIX TIP let us know, we just may use it:
(All tips become the property of the Unix Guru Universe)
Email Address:

Yes, email me a Hot Unix Tip everday.

Enter Hot Unix Tip (optional):

Yes, I will support this tip

Captcha (not case sensitive):


Please enter the above letters:

 
Copyright 1994-2011 Unix Guru Universe