09-18-2019
Can you share the logic / code to add first two elements seperated by single space to array[0] and the next elements thereon ?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Please can someone thow some light what is the best way to split a string to obtain the words delimited by whitespaces. (4 Replies)
Discussion started by: Sudhakar333
4 Replies
2. Shell Programming and Scripting
Hi,
I want to remove empty/blank lines from comma seperated and space seperated files
Thanks all for help (11 Replies)
Discussion started by: pinnacle
11 Replies
3. Shell Programming and Scripting
I'd like to create a variable with the value of X number of space( no Perl please), printf seems to work, but , in following example,10 spaces becomes 1 space when assinged to a variable, Why? other solutions are welcome.
$printf "=%10s=\n"
= =
$var=$(printf "=%10s=\n")
echo... (4 Replies)
Discussion started by: honglus
4 Replies
4. Shell Programming and Scripting
hello,
i have this string:
variable="1234 /PARAMETER_1:text /PARAMETER_2:othertext"
i tried to do
expr match $variable '.*\(*\)'
but i keep getting expr error
i need to extract the word text...
thank you (4 Replies)
Discussion started by: Aloush89
4 Replies
5. Shell Programming and Scripting
Hi,
I have data like this.
1,2,3,4
Output required:
1
2
3
4
I am trying to use tr function but getting error.
Help is appreciated. (6 Replies)
Discussion started by: pinnacle
6 Replies
6. Shell Programming and Scripting
I have an array and two variables as below,
I need to check if $datevar is present in $filename.
If so, i need to replace $filename with the values in the array.
I need the output inside an ARRAY
How can this be done.
Any help will be appreciated. Thanks in advance. (2 Replies)
Discussion started by: irudayaraj
2 Replies
7. Shell Programming and Scripting
Hi everybody!!
Here is the thing; I have a trouble in this simple situation, I'm trying to write an array with all the arguments of a command. I mean, if I have:
./mycommand.sh aa bb cc dd
I need to take an array like this:
myarray=(aa bb cc dd)
So I use a simple for loop like this:
for... (4 Replies)
Discussion started by: andresgom
4 Replies
8. OS X (Apple)
Hi guys and gals...
MacBook Pro.
OSX 10.13.2, default bash terminal.
I have a flat file 1920 bytes in size of whitespaces only. I need to put every single whitespace character into a bash array cell.
Below are two methods that work, but both are seriously ugly.
The first one requires that I... (7 Replies)
Discussion started by: wisecracker
7 Replies
9. Shell Programming and Scripting
Hi Experts
I have an escape seperated fields in the unix file. And in the below format file I need to extract the first column. Please help its urgent.
cat -v op.dat | head
24397028^
I want to extract the file in below format ( with only first column )
24397028
2439707
thanks.
... (6 Replies)
Discussion started by: neha_suri06
6 Replies
10. UNIX for Beginners Questions & Answers
I will start with an example of what I'm trying to do and then describe how I am approaching the issue.
File
PS028,005
Lexeme HRS # M #
PhraseType 1(1:1) 7(7)
PhraseLab 501 503
ClauseType ZYq0
PS028,005
Lexeme W # L> # BNH # M #... (17 Replies)
Discussion started by: jvoot
17 Replies
LEARN ABOUT PHP
preg_split
PREG_SPLIT(3) 1 PREG_SPLIT(3)
preg_split - Split string by a regular expression
SYNOPSIS
array preg_split (string $pattern, string $subject, [int $limit = -1], [int $flags])
DESCRIPTION
Split the given string by a regular expression.
PARAMETERS
o $pattern
- The pattern to search for, as a string.
o $subject
- The input string.
o $limit
- If specified, then only substrings up to $limit are returned with the rest of the string being placed in the last substring. A
$limit of -1, 0 or NULL means "no limit" and, as is standard across PHP, you can use NULL to skip to the $flags parameter.
o $flags
-$flags can be any combination of the following flags (combined with the | bitwise operator):
o PREG_SPLIT_NO_EMPTY - If this flag is set, only non-empty pieces will be returned by preg_split(3).
o PREG_SPLIT_DELIM_CAPTURE - If this flag is set, parenthesized expression in the delimiter pattern will be captured and
returned as well.
o PREG_SPLIT_OFFSET_CAPTURE - If this flag is set, for every occurring match the appendant string offset will also be
returned. Note that this changes the return value in an array where every element is an array consisting of the matched
string at offset 0 and its string offset into $subject at offset 1.
RETURN VALUES
Returns an array containing substrings of $subject split along boundaries matched by $pattern.
EXAMPLES
Example #1
preg_split(3) example : Get the parts of a search string
<?php
// split the phrase by any number of commas or space characters,
// which include " ",
, ,
and f
$keywords = preg_split("/[s,]+/", "hypertext language, programming");
print_r($keywords);
?>
The above example will output:
Array
(
[0] => hypertext
[1] => language
[2] => programming
)
Example #2
Splitting a string into component characters
<?php
$str = 'string';
$chars = preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);
print_r($chars);
?>
The above example will output:
Array
(
[0] => s
[1] => t
[2] => r
[3] => i
[4] => n
[5] => g
)
Example #3
Splitting a string into matches and their offsets
<?php
$str = 'hypertext language programming';
$chars = preg_split('/ /', $str, -1, PREG_SPLIT_OFFSET_CAPTURE);
print_r($chars);
?>
The above example will output:
Array
(
[0] => Array
(
[0] => hypertext
[1] => 0
)
[1] => Array
(
[0] => language
[1] => 10
)
[2] => Array
(
[0] => programming
[1] => 19
)
)
NOTES
Tip
If you don't need the power of regular expressions, you can choose faster (albeit simpler) alternatives like explode(3) or
str_split(3).
Tip
If matching fails, an array with a single element containing the input string will be returned.
SEE ALSO
PCRE Patterns, preg_quote(3), implode(3), preg_match(3), preg_match_all(3), preg_replace(3), preg_last_error(3).
PHP Documentation Group PREG_SPLIT(3)