one of my colleagues has this question.
he has a command, C_CMD which accepts 4 variables, $1 $2 $3 $4
he wants to load up a file with multiple rows, one row per set of variables and then iteratively execute the command based on the content of the file.
example:
at the command line you'd... (5 Replies)
Hi,
I do have a file and the contents are as follws:
10
20
30
40
50
Now I want to store those values into an array. How can be done this ?? (3 Replies)
Passing a array to a function, a basic feature in modern language, seems to be only possible in KSH. Not in BASH. Depite all my efforts I couldn't come to a solution. See the following examples:
It works perfectly in KSH:
#!/usr/bin/ksh
function print_array {
# assign array by indirect... (3 Replies)
Hi there,
I am trying to call a shell script from a Perl script. here is the code:
@args = ("sh", "someshellprg.sh", "a file handler", "an array");
system(@args) == 0
or die "system @args failed: $?";
in the shell program, I examine if the arguments exits using:
if
then echo... (5 Replies)
Hi,
I'm trying to write a function that reassigns an array to
another local array but the method used in reassigning
the array reformats the contents of the array which is
what I am trying to prevent.
The method used to load a file into an array works as
expected and the entire array is... (4 Replies)
Hi,
Is there an easy way to simulate following Perl code in Bash.
if ( grep {$my_value eq $_} @ARGV ){
print "Do Something\n";
} else {
die "Invalid value";
} (0 Replies)
Good grief so this should be easy. Passing an array as an argument to a function. Here is the sample code:
#/bin/bash
function foo {
local p1=${1}
local p2=(${2})
local p3=${3}
echo p1 is $p1
echo p2 is $p2
echo p3 is $p3
}
d1=data1
d2=data2
a=(bat bar baz) (2 Replies)
:wall: Hi,
I have an XML file with 5 tags. I need to pass values to the XML file from a shell script that will replace values in 2 of the tags. I cannot hardcode the tag values in XML and use replace command in script as the values are likely to change.
Please help !!!!!!!!!!! (2 Replies)
Hello :)
I created a little script that allow to make a rotation of values in an array. The goal was to shift the values to the right and that the last value of the array became the first value in order to create a rotation.
The purpose of the exercice was to do it without using a temporary... (3 Replies)
Hello :)
I created a little script that allow to make a rotation of values in an array. The goal was to shift the values to the right and that the last value of the array became the first value in order to create a rotation.
The purpose of the exercice was to do it without using a temporary... (6 Replies)
Discussion started by: Nexy
6 Replies
LEARN ABOUT PHP
getopt
GETOPT(3) 1 GETOPT(3)getopt - Gets options from the command line argument listSYNOPSIS
array getopt (string $options, [array $longopts])
DESCRIPTION
Parses options passed to the script.
PARAMETERS
o $options
- Each character in this string will be used as option characters and matched against options passed to the script starting with a
single hyphen ( -). For example, an option string "x" recognizes an option -x. Only a-z, A-Z and 0-9 are allowed.
o $longopts
- An array of options. Each element in this array will be used as option strings and matched against options passed to the script
starting with two hyphens ( --). For example, an longopts element "opt" recognizes an option --opt.
The $options parameter may contain the following elements:
oIndividual characters (do not accept values)
oCharacters followed by a colon (parameter requires value)
oCharacters followed by two colons (optional value)
Option values are the first argument after the string. If a value is required, it does not matter whether the value has leading white
space or not. See note.
Note
Optional values do not accept " " (space) as a separator.
Note
The format for the $options and $longopts is almost the same, the only difference is that $longopts takes an array of options
(where each element is the option) whereas $options takes a string (where each character is the option).
RETURN VALUES
This function will return an array of option / argument pairs or FALSE on failure.
Note
The parsing of options will end at the first non-option found, anything that follows is discarded.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | Added support for "=" as argument/value separa- |
| | tor. |
| | |
| 5.3.0 | |
| | |
| | Added support for optional values (specified |
| | with "::"). |
| | |
| 5.3.0 | |
| | |
| | Parameter $longopts is available on all systems. |
| | |
| 5.3.0 | |
| | |
| | This function is no longer system dependent, and |
| | now works on Windows, too. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
getopt(3) example: The basics
<?php
// Script example.php
$options = getopt("f:hp:");
var_dump($options);
?>
shell> php example.php -fvalue -h
The above example will output:
array(2) {
["f"]=>
string(5) "value"
["h"]=>
bool(false)
}
Example #2
getopt(3) example: Introducing long options
<?php
// Script example.php
$shortopts = "";
$shortopts .= "f:"; // Required value
$shortopts .= "v::"; // Optional value
$shortopts .= "abc"; // These options do not accept values
$longopts = array(
"required:", // Required value
"optional::", // Optional value
"option", // No value
"opt", // No value
);
$options = getopt($shortopts, $longopts);
var_dump($options);
?>
shell> php example.php -f "value for f" -v -a --required value --optional="optional value" --option
The above example will output:
array(6) {
["f"]=>
string(11) "value for f"
["v"]=>
bool(false)
["a"]=>
bool(false)
["required"]=>
string(5) "value"
["optional"]=>
string(14) "optional value"
["option"]=>
bool(false)
}
Example #3
getopt(3) example: Passing multiple options as one
<?php
// Script example.php
$options = getopt("abc");
var_dump($options);
?>
shell> php example.php -aaac
The above example will output:
array(2) {
["a"]=>
array(3) {
[0]=>
bool(false)
[1]=>
bool(false)
[2]=>
bool(false)
}
["c"]=>
bool(false)
}
SEE ALSO
$argv.
PHP Documentation Group GETOPT(3)