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 #4413- April 10, 2024 - Home : Help : Today's Tip
Unix Tip #4413- April 10, 2024

DISPLAY ENTIRE BLOCKS


To display entire blocks of text
which contain a certain pattern,
this one-liner can be used:

cat file | perl -e "$/=''; while (<>) {print if /pattern/)}"

Of course, this can be put in a
perl-script pgrep:

#!/bin/perl
$/='';
while (<>)
{print if /pattern/)}



This tip generously supported by: hmthage@wanadoo.nl





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
4412 - OUTPUT BETWEEN LINES
4411 - A VI FILE REVERSAL
4410 - FINDING BLANK LINES
4409 - SUN LOGIN DENIED
4408 - ENHANCED #1576 FILE REVERSAL


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 1994-2018 Unix Guru Universe