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Top Forums Shell Programming and Scripting How to make arrays from strings in bash? Post 302510175 by camocazi on Friday 1st of April 2011 05:23:35 PM
Old 04-01-2011
Quote:
Originally Posted by Chubler_XL
This should do it:

Code:
#!/bin/bash
RunsArray=( $(sed -n '/set Runs/{s/.*(//; s/)$//p}' SortScans) )
 
echo RunsArray elements: ${#RunsArray[@]}
echo Number 0: ${RunsArray[0]}
echo Number 1: ${RunsArray[1]}

Hey thanks, it works great for FoldersArray (creates an array of strings) but it doesn't work for RunsArray (which would be an array of numbers).

RunsArray just comes up as an empty array. Any ideas?
 

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EXPLODE(3)								 1								EXPLODE(3)

explode - Split a string by string

SYNOPSIS
array explode (string $delimiter, string $string, [int $limit]) DESCRIPTION
Returns an array of strings, each of which is a substring of $string formed by splitting it on boundaries formed by the string $delimiter. PARAMETERS
o $delimiter - The boundary string. o $string - The input string. o $limit - If $limit is set and positive, the returned array will contain a maximum of $limit elements with the last element containing the rest of $string. If the $limit parameter is negative, all components except the last -$limit are returned. If the $limit parame- ter is zero, then this is treated as 1. Note Although implode(3) can, for historical reasons, accept its parameters in either order, explode(3) cannot. You must ensure that the $delimiter argument comes before the $string argument. RETURN VALUES
Returns an array of strings created by splitting the $string parameter on boundaries formed by the $delimiter. If $delimiter is an empty string (""), explode(3) will return FALSE. If $delimiter contains a value that is not contained in $string and a negative $limit is used, then an empty array will be returned, otherwise an array containing $string will be returned. CHANGELOG
+--------+-----------------------------------------+ |Version | | | | | | | Description | | | | +--------+-----------------------------------------+ | 5.1.0 | | | | | | | Support for negative $limits was added | | | | +--------+-----------------------------------------+ EXAMPLES
Example #1 explode(3) examples <?php // Example 1 $pizza = "piece1 piece2 piece3 piece4 piece5 piece6"; $pieces = explode(" ", $pizza); echo $pieces[0]; // piece1 echo $pieces[1]; // piece2 // Example 2 $data = "foo:*:1023:1000::/home/foo:/bin/sh"; list($user, $pass, $uid, $gid, $gecos, $home, $shell) = explode(":", $data); echo $user; // foo echo $pass; // * ?> Example #2 explode(3) return examples <?php /* A string that doesn't contain the delimiter will simply return a one-length array of the original string. */ $input1 = "hello"; $input2 = "hello,there"; var_dump( explode( ',', $input1 ) ); var_dump( explode( ',', $input2 ) ); ?> The above example will output: array(1) ( [0] => string(5) "hello" ) array(2) ( [0] => string(5) "hello" [1] => string(5) "there" ) Example #3 $limit parameter examples <?php $str = 'one|two|three|four'; // positive limit print_r(explode('|', $str, 2)); // negative limit (since PHP 5.1) print_r(explode('|', $str, -1)); ?> The above example will output: Array ( [0] => one [1] => two|three|four ) Array ( [0] => one [1] => two [2] => three ) NOTES
Note This function is binary-safe. SEE ALSO
preg_split(3), str_split(3), mb_split(3), str_word_count(3), strtok(3), implode(3). PHP Documentation Group EXPLODE(3)
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