Delete text in file using bash script in CentOS

Question

I'm a student from indonesia and I want to create an script that deletes few lines from a file containing the following text:

zone "irf.com" {
type master;
file "db.irf.com";
allow-update { none; };
};

zone "friedrice.com" {
type master;
file "db.friedrice.com";
allow-update { none; };
};

zone "you.com" {
type master;
file "db.you.com";
allow-update { none; };
};

If i want to delete this:

zone "friedrice.com" {
type master;
file "db.friedrice.com";
allow-update { none; };
};

In the terminal I can run: sh you.txt friedrice

How is the syntax in shell programming??

All the text is in a file, let's say you.txt

I'm a newbie, so please help me

While you have received some good answers to your concrete question, they amount to using unstructured tools to manipulate structured data. You have zone data, not XML, but that's a detail; this is fundamentally the same problem as http://stackoverflow.com/questions/701166/can-you-provide-some-examples-of-why-it-is-hard-to-parse-xml-and-html-with-a-reg — tripleee, Jul 01 '12 at 10:49

score 0 · Answer 1 · edited Jul 02 '12 at 06:46

0

Use this:

sed -i -E -n '1h;1!H;${;g;s/zone "friedrice.com" {[^}]*};\n};//g;p;}' you.txt

edited Jul 02 '12 at 06:46

Somnath Muluk

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answered Jul 01 '12 at 06:48

mVChr

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score 0 · Accepted Answer · answered Jul 01 '12 at 07:06

0

sed -i '/^zone "friedrice.com"/,/^}/d' you.txt

answered Jul 01 '12 at 07:06

Dennis Williamson

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may i have your email?? so i have some problem in linux i can ask you,, thank you very much sir :) – achmad irfan Jul 01 '12 at 10:17
1

@achmadirfan: If you have additional questions, please post them here on Stack Overflow. – Dennis Williamson Jul 01 '12 at 10:39

Delete text in file using bash script in CentOS

2 Answers2