How to delete string other than pattern?

Question

I have a m3u file as below. I want to delete all strings except the pattern and next first line. or save the pattern and the next first line as another file.

Patterns group-title="TR ULUSAL" , group-title="TR HABER" , group-title="TR BELGESEL" Raw data:

#EXTINF:-1 tvg-id="" tvg-name="TRT HD 1080" tvg-logo="http://url/tr/trt.png" group-title="TR ULUSAL",TRT HD 1080
http://xxx.xx:xx/xx/xx/123

#EXTINF:-1 tvg-id="" tvg-name="THRILLER 16 Blocks" tvg-logo="http://url/Blocks.jpg" group-title="DEUTSCHE FILME",THRILLER 16 Blocks
http://xxx.xx:xx/xx/xx/632.mkv

#EXTINF:-1 tvg-id="" tvg-name="TRT HD 720" tvg-logo="http://url/trt.png" group-title="TR ULUSAL",TRT HD 720
http://xxx.xx:xx/xx/xx/218

#EXTINF:-1 tvg-id="" tvg-name="CNN TURK 1080" tvg-logo="http://url/cnnturkhd.png" group-title="TR HABER",CNN TURK 1080
http://xxx.xx:xx/xx/xx/926

#EXTINF:-1 tvg-id="" tvg-name="THRILLER 28 Weeks Later" tvg-logo="http://url/tr/Later.jpg" group-title="RUSSIA",THRILLER 28 Weeks Later
http://xxx.xx:xx/xx/xx/4805.mkv

#EXTINF:-1 tvg-id="" tvg-name="THRILLER 16 Blocks" tvg-logo="http://url/Blocks.jpg" group-title="TR DUBLAJ FILM",THRILLER 16 Blocks
http://xxx.xx:xx/xx/xx/632.mkv

#EXTINF:-1 tvg-id="" tvg-name="TRT BELGESEL HD 720" tvg-logo="http://url/trtb.png" group-title="TR BELGESEL",TRT BELGESEL 720
http://xxx.xx:xx/xx/xx/218

The result I am expecting is:

#EXTINF:-1 tvg-id="" tvg-name="TRT HD 1080" tvg-logo="http://url/tr/trt.png" group-title="TR ULUSAL",TRT HD 1080
http://xxx.xx:xx/xx/xx/123

#EXTINF:-1 tvg-id="" tvg-name="TRT HD 720" tvg-logo="http://url/trt.png" group-title="TR ULUSAL",TRT HD 720
http://xxx.xx:xx/xx/xx/218

#EXTINF:-1 tvg-id="" tvg-name="CNN TURK 1080" tvg-logo="http://url/cnnturkhd.png" group-title="TR HABER",CNN TURK 1080
http://xxx.xx:xx/xx/xx/926

#EXTINF:-1 tvg-id="" tvg-name="TRT BELGESEL 720" tvg-logo="http://url/trtb.png" group-title="TR BELGESEL",TRT BELGESEL 720
http://xxx.xx:xx/xx/xx/218

Philippos · Accepted Answer · 2019-05-10 10:46:46Z

1

In sed you would used extended regular expression with option -E:

sed -E '/group-title="TR (ULUSAL|HABER|BELGESEL)"/!d;n;n'

The () around the ULUSAL|HABER|BELGESEL make sure the | only applies for the patterns inside.

A line with neither pattern (the ! behind the pattern) gets deleted. All other lines (those with the patterns) execute the n;n, so the line itself gets printed, the next one as well and the next empty line after it.

answered May 10, 2019 at 10:46

Philippos

13.7k2 gold badges42 silver badges82 bronze badges

Add a comment |

Panki · Accepted Answer · 2019-05-10 10:18:20Z

0

Assuming the file is called inputfile, and the output should be stored in outputfile:

grep --no-group-separator -A 2 -E \
"group-title=\"TR ULUSAL\"|group-title=\"TR HABER\"|group-title=\"TR BELGESEL\"" \
inputfile > outputfile

This works by using extended regular expressions (-E), and after-context (-A).

answered May 10, 2019 at 10:18

Panki

7,1923 gold badges28 silver badges37 bronze badges

Both suggestions working great. Thank you.

Ali Haydar Doğan
– Ali Haydar Doğan

2019-05-11 17:04:17 +00:00
Commented May 11, 2019 at 17:04

Add a comment |

Stack Exchange Network

How to delete string other than pattern?

2 Answers 2

You must log in to answer this question.

Hot Network Questions

How to delete string other than pattern?

2 Answers 2

You must log in to answer this question.

Related

Hot Network Questions