One line parsing, example 3 methods, same result.
If delimeter is something else as "whitespace", then change IFS, scipt include example,
if you need use | delimeter.
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Hi,
I need a command in UNIX KSH below is the description...
MAPPING DESCRIPTION ="Test Mapping for the calid inputs" ISVALID ="YES" NAME ="m_test_xml" OBJECTVERSION ="1" VERSIONNUMBER ="1"
unix ksh command to read the DESCRIPTION and write to a file
Test Mapping for the calid inputs... (3 Replies)
Hallo,
i need a Prompting read in my script:
read -p "Enter your command: " command
But i always get this Error:
-p: is not an identifier
When I run these in c-shell i get this error
/usr/bin/read: read: bad option(s)
How can I use a Prompt in the read command? (9 Replies)
Hello All,
I am trying to figure out how to use the read command. I have a txt file that has rows looking something like this:
1 2 3 4 5 6 7 8 9
where each number represents an entry of various characters deliminated by tabs.
My goal is to set entries 2-7 as a variable/string that I... (3 Replies)
Hi folks,
I want to display the "*" character the entire line. Instead of manually giving "*" multiple times in echo/print command, i want some short cut.
i remember i have came across a straight forward method to display particular character (for example "*" ) for n number of times in unix.... (6 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Hello everybody,
I'm still slowly treading my way into bash scripting (without any prior programming experience) and hence my code is mostly what some might call "creative" if they meant well :D
I have created a script that serves its purpose but it does so very slowly, since it needs to work... (4 Replies)
Hi,
I have a string like this,
char str ="This, a sample string.\\nThis is the second line, \\n \\n, we will have one blank line";
if I want to use strtok() to seperate the string, which token should I use?
I tried "\n", "\\n", either not working.
peter (1 Reply)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Hi everybody,
I am new at Unix/Bourne shell scripting and with my youngest experiences, I will not become very old with it :o
My code:
#!/bin/sh
set -e
set -u
export IFS=
optl="Optl"
LOCSTORCLI="/opt/lsi/storcli/storcli"
($LOCSTORCLI /c0 /vall show | grep RAID | cut -d " "... (5 Replies)
Discussion started by: Subsonic66
5 Replies
LEARN ABOUT PHP
array_filter
ARRAY_FILTER(3) 1 ARRAY_FILTER(3)array_filter - Filters elements of an array using a callback functionSYNOPSIS
array array_filter (array $array, [callable $callback], [int $flag])
DESCRIPTION
Iterates over each value in the $array passing them to the $callback function. If the $callback function returns true, the current value
from $array is returned into the result array. Array keys are preserved.
PARAMETERS
o $array
- The array to iterate over
o $callback
- The callback function to use If no $callback is supplied, all entries of $array equal to FALSE (see converting to boolean) will
be removed.
o $flag
- Flag determining what arguments are sent to $callback:
o ARRAY_FILTER_USE_KEY - pass key as the only argument to $callback instead of the value
o ARRAY_FILTER_USE_BOTH - pass both value and key as arguments to $callback instead of the value
RETURN VALUES
Returns the filtered array.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.6.0 | |
| | |
| | Added optional $flag parameter and constants |
| | ARRAY_FILTER_USE_KEY and ARRAY_FILTER_USE_BOTH |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
array_filter(3) example
<?php
function odd($var)
{
// returns whether the input integer is odd
return($var & 1);
}
function even($var)
{
// returns whether the input integer is even
return(!($var & 1));
}
$array1 = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5);
$array2 = array(6, 7, 8, 9, 10, 11, 12);
echo "Odd :
";
print_r(array_filter($array1, "odd"));
echo "Even:
";
print_r(array_filter($array2, "even"));
?>
The above example will output:
Odd :
Array
(
[a] => 1
[c] => 3
[e] => 5
)
Even:
Array
(
[0] => 6
[2] => 8
[4] => 10
[6] => 12
)
Example #2
array_filter(3) without $callback
<?php
$entry = array(
0 => 'foo',
1 => false,
2 => -1,
3 => null,
4 => ''
);
print_r(array_filter($entry));
?>
The above example will output:
Array
(
[0] => foo
[2] => -1
)
Example #3
array_filter(3) with $flag
<?php
$arr = ['a' => 1, 'b' => 2, 'c' => 3, 'd' => 4];
var_dump(array_filter($arr, function($k) {
return $k == 'b';
}, ARRAY_FILTER_USE_KEY));
var_dump(array_filter($arr, function($v, $k) {
return $k == 'b' || $v == 4;
}, ARRAY_FILTER_USE_BOTH));
?>
The above example will output:
array(1) {
["b"]=>
int(2)
}
array(2) {
["b"]=>
int(2)
["d"]=>
int(4)
}
NOTES
Caution
If the array is changed from the callback function (e.g. element added, deleted or unset) the behavior of this function is unde-
fined.
SEE ALSO array_map(3), array_reduce(3), array_walk(3).
PHP Documentation Group ARRAY_FILTER(3)