GREP or AWK complex pattern match (linux)

Question

So I have text output bellow from a 'mediinfo VIDEO.mkv':

General
Unique ID                                : 190778803810831492312123193779943 (0x8F265C1B107A4D595F723237C370C7074FB7)
Complete name                            : VIDEO.mkv
Format                                   : Matroska
Format version                           : Version 4 / Version 2

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main@L3@Main
Codec ID                                 : V_MPEGH/ISO/HEVC

I need to GREP or AWK out the Format: HEVC bellow Video. I wasn't sure how to proceed as I could regex 'Format' but then I get back multiple rows (Matroska and HEVC). I haven't found any handy hints.

Ideas?

Please avoid *"Give me the codez"* questions that have been asked and answered so many times you have to make an effort to avoid finding an answer. Instead show the script you are working on and state where the problem is. Also see [How much research effort is expected of Stack Overflow users?](https://meta.stackoverflow.com/q/261592/608639) — jww, Aug 27 '18 at 10:47

score 0 · Answer 1 · answered Aug 27 '18 at 06:10

If "Matroska" is fixed you can do it by mediinfo VIDEO.mkv | grep "Format " test.fi | grep -v "Matroska"
If output format is fixed then you do it by mediinfo VIDEO.mkv | grep "Format " test.fi | tail -n1

grep -v will ignore matching line, tail will print specified number o lines from the last.

score 0 · Answer 2 · answered Aug 27 '18 at 07:40

0

mediinfo VIDEO.mkv | awk -v RS= '/^Video/{print $7}' 
HEVC

You can use awk with RS set to blank and print the desired column number.

answered Aug 27 '18 at 07:40

P....

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score -1 · Answer 3 · answered Aug 27 '18 at 06:10

-1

Obviously many ways to solve this, but sed seems like a natural fit here:

$ sed -n '/Video/,$ { s/Format *: //p }' file
HEVC

answered Aug 27 '18 at 06:10

randomir

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What is the reason for the `{ }` ? – PesaThe Aug 27 '18 at 09:59
Isn't it at the expense of compatibility here? – PesaThe Aug 27 '18 at 14:40
@PesaThe, what do you mean? Curly braces are a valid command group per POSIX, too. – randomir Aug 27 '18 at 17:31
I thought it wasn't, my bad. – PesaThe Aug 27 '18 at 17:37

GREP or AWK complex pattern match (linux)

3 Answers3