Sorry to be a pain again scripter.online.
The trailing semicolon is not needed and can cause some shells to misbehave.
In this context it is harmless.
I'm only being pedantic because you are building a useful resource.
Personally I might use "&&" to test the success of a command when writing a dependent cron, but rarely in scripts.
However in Oracle scripting the semicolon is critical.
how to parse the command line argument to look for '@' sign and the following with '.'.
In my shell script one of the argument passed is email address. I want to parse this email address to look for correct format.
rmjoe123@hotmail.com has '@' sign and followed by a '.'
to be more... (1 Reply)
Trying to tar specific files from a directory causes problems when the number of files is too large.
ls ~/logs | wc -l
5928
In the logs directory - I have 5928 files
If I want to include all files with today's date - I run the following command
tar cf ~/archive/LoadLogs_20060302.tar... (8 Replies)
All,
I am having a shell script and i will pass different argument diferent time . Please tell me how can i find the last argument that i passsed each time when i exec the script.
Thanks,
Arun. (5 Replies)
Hi,
If not running a shell script file in current shell (. ./fileName) then $0 represents the executable file name. But in case of invoking shell script file in current shell then i m getting "$0 as -bash" . In such case how can i get the program name (running shell script file name)?
Thanks, (2 Replies)
Hi All,
I have a script which accepts a parameter which can either be blank, a specific value, or a wildcard value. But it never seems to be blank and the wildcard option seems to return the names of matching files in my directory. This happens even with the worlds simplest script that just... (1 Reply)
#!/bin/bash
echo "enter a file or directory name"
read name
if
then
echo " argument is file "
ls -l $name | awk '{print $1,}'
elif
echo " argument is a directory"
ls -l $name | awk '{print $1}'
fi
what i am trying to do. get input... (3 Replies)
Hi I am new in shell,
I am trying to create a small script that can do exit if a script is executed when argument not 2
#!/bin/sh
if ; then
echo greater
exit 1;
elif ; then
echo less
exit 1;
fiit keeps returning me
whatever number of argument I... (1 Reply)
Hi,
I have a requirement to work on script, it should take either of arguments.
wrote it as below.
#!/bin/bash
usage() {
echo "$0: missing argument OR invalid option !
Usage : $0 -m|-r|-d
}
while getopts mrdvh opt; do
case "$opt" in
m) monitor_flag=monitor;;... (1 Reply)
In one of my shell function I found the following
set_default_values () {
prog=$1
PROC_DT=$2
RESET_ALL="${3-N}"
#echo "Processing date as passed = , Program name = "
......
I understand the first and second arguments, but don't understand... (1 Reply)
Discussion started by: digioleg54
1 Replies
LEARN ABOUT PHP
explode
EXPLODE(3) 1 EXPLODE(3)explode - Split a string by stringSYNOPSIS
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)