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Display a block of text with AWK

Terminal - Display a block of text with AWK
sed -n /start_pattern/,/stop_pattern/p file.txt
2009-10-24 16:35:39
User: pipping
Functions: sed
7
Display a block of text with AWK

Alternatives

There are 4 alternatives - vote for the best!

Terminal - Alternatives
awk '/start_pattern/,/stop_pattern/' file.txt
2009-03-28 14:28:59
User: atoponce
Functions: awk
82

I find this terribly useful for grepping through a file, looking for just a block of text. There's "grep -A # pattern file.txt" to see a specific number of lines following your pattern, but what if you want to see the whole block? Say, the output of "dmidecode" (as root):

dmidecode | awk '/Battery/,/^$/'

Will show me everything following the battery block up to the next block of text. Again, I find this extremely useful when I want to see whole blocks of text based on a pattern, and I don't care to see the rest of the data in output. This could be used against the '/etc/securetty/user' file on Unix to find the block of a specific user. It could be used against VirtualHosts or Directories on Apache to find specific definitions. The scenarios go on for any text formatted in a block fashion. Very handy.

vim -e -s -c 'g/start_pattern/+1,/stop_pattern/-1 p' -cq file.txt
2009-08-26 10:22:27
User: syladmin
Functions: vim
Tags: vim block
0

By using vim, you can also filter content on stdout, using vim's extra power, like search pattern offset!

No more awk of course, sorry.

details :

-e ex mode

-s silent

-c 'ex command' : global + start and end pattern + offset print (p)

-cq : quit

Know a better way?

If you can do better, submit your command here.

What others think

I've found this very useful in the past.

Comment by jgc 291 weeks and 2 days ago

Your point of view

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