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Full Discussion: sed to delete items in an array from a file
Top Forums Shell Programming and Scripting sed to delete items in an array from a file Post 302976022 by bash_in_my_head on Wednesday 22nd of June 2016 02:30:40 PM
Old 06-22-2016
sed to delete items in an array from a file
I need to create a shell script to delete multiple items (Strings) at a time from a file.

I need to iterate through a list of strings.

My plan is to create an array and then iterate through the array.
My code is not working
Code:
#!/bin/bash -x


declare -a array=(one, two, three, four)

for element in "${array[@]}"
do
    sed "s/"$element"//g" input
    #awk "{gsub("$element", "");print}" input
done

the file input contains
one
two
three
four
 

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LEARN ABOUT PHP

collator_sort

COLLATOR_SORT(3)							 1							  COLLATOR_SORT(3)

Collator::sort - Sort array using specified collator

	Object oriented style

SYNOPSIS

       public bool Collator::sort (array  &$arr, [int  $sort_flag])

DESCRIPTION

	Procedural style
       bool collator_sort (Collator  $coll, array  &$arr, [int	$sort_flag])

       This function sorts an array according to current locale rules.

	Equivalent to standard PHP sort(3) .

PARAMETERS

	      o $coll
		-Collator object.

	      o $arr
		- Array of strings to sort.

	      o $sort_flag
		- Optional sorting type, one of the following:

		     o Collator::SORT_REGULAR - compare items normally (don't change types)

		     o Collator::SORT_NUMERIC - compare items numerically

		     o Collator::SORT_STRING - compare items as strings

	       Default sorting type is Collator::SORT_REGULAR. It is also used if an invalid $sort_flag value has been specified.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      collator_sort(3) example

	      <?php
	      $coll = collator_create( 'en_US' );
	      $arr  = array( 'at', 'as', 'as' );

	      var_export( $arr );
	      collator_sort( $coll, $arr );
	      var_export( $arr );
	      ?>

	      The above example will output:

	      array (
		0 => 'at',
		1 => 'as',
		2 => 'as',
	      )array (
		0 => 'as',
		1 => 'as',
		2 => 'at',
	      )

SEE ALSO

       Collator constants, collator_asort(3), collator_sort_with_sort_keys(3).

PHP Documentation Group 													  COLLATOR_SORT(3)
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