Remove all string between two strings

Question

I would like to ask if it's possible to delete all strings between two strings even on different line ?

Here is the original file:

<?php
$CONFIG = array (
  'trusted_domains' =>
  array (
    0 => '192.168.0.32',
  ),
  'datadirectory' => '/var/www/html/files/data',
  'overwrite.cli.url' => 'http://192.168.0.44/files',
  'dbtype' => 'mysql',
  'dbport' => '',
  'installed' => true,
  'loglevel' => 2,
  'maintenance' => false,
);

What I expect :

<?php
$CONFIG = array (
  'trusted_domains' =>
  array (

  ),
  'datadirectory' => '/var/www/html/files/data',
  'overwrite.cli.url' => 'http://192.168.0.44/files',
  'dbtype' => 'mysql',
  'dbport' => '',
  'installed' => true,
  'loglevel' => 2,
  'maintenance' => false,
);

I want to empty everything inside trusted domains.

What I tried :

sed -e 's/\(trusted_domains\).*\(\),\)/\1\2/'

Sundeep · Accepted Answer · 2018-12-05 15:18:02Z

By default, sed operates only line by line. There are some commands and options using which you can operate on multiple lines. For example, if your sed supports -z option and input doesn't contain the ASCII NUL character, you can do this:

$ sed -zE 's/(trusted_domains[^(]+\()[^)]+/\1/' ip.txt
<?php
$CONFIG = array (
  'trusted_domains' =>
  array (),
  'datadirectory' => '/var/www/html/files/data',
  'overwrite.cli.url' => 'http://192.168.0.44/files',
  'dbtype' => 'mysql',
  'dbport' => '',
  'installed' => true,
  'loglevel' => 2,
  'maintenance' => false,
);

This will slurp entire input content and sed would see only one input record. So, this will not be suitable for large input files. Also, here it is assumed that parenthesis are not part of contents of array

Perl has an option to slurp entire input content irrespective of characters present:

perl -0777 -pe 's/trusted_domains[^(]+\(\K[^)]+//' ip.txt

anubhava · Accepted Answer · 2018-12-05 15:16:00Z

1

It might be easier using perl:

perl -0777 -pe 's/(trusted_domains.*=>\s*array\s*\()[\s\S]*\),/$1\n  ),/' file.php

<?php
$CONFIG = array (
  'trusted_domains' =>
  array (
  ),
  'datadirectory' => '/var/www/html/files/data',
  'overwrite.cli.url' => 'http://192.168.0.44/files',
  'dbtype' => 'mysql',
  'dbport' => '',
  'installed' => true,
  'loglevel' => 2,
  'maintenance' => false,
);

answered Dec 5, 2018 at 15:16

anubhava

790k67 gold badges603 silver badges671 bronze badges

Collectives™ on Stack Overflow

Remove all string between two strings

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related