How to sort list of directories in descending order in perl?
Hi,
I have a problem . I have few directories like inpTDT_1, inpTDT_2, inpTDT_3 and so on inside HOME directory . In one of my perl script (which is in my HOME), the above directories like inpTDT_1, inpTDT_2, inpTDT_3 are sorting out in an order So I wanted to sort all the inpTDT_1, inpTDT_2, inpTDT_3 and so on directories in Descending order . based on _* Value .How can I do that ???
Please give fast Response.
FYI,
Last edited by RavinderSingh13; 01-13-2020 at 05:08 AM..
Dear All,
I have below attached file in which i have many nos, i want the last ascending order nos. The brief description is given below.
File
315
381
432
315
381
432
315
381
432
315
381
432
315
381
432 (6 Replies)
Hi ,
I am very new to unix as well as shell scripting. I have to write a script for the following requirement.
In a particular mount, have to list all the directories and sub directories along with size of the directory and sub directory in ascending order.
Please help me in this regard and many... (4 Replies)
hi all
i want to remove some descending order number
example :
1 100 200 135.00 Gk_wirs 1
1 100 200 136.00 Gk_wirs 50
1 110 210 138.00 Gk_wirs 60
1 100 200 136.00 Gk_wirs 57 ----> how to remove... (6 Replies)
Hi,
I have multiple list which is arranged by order of importance. I need to do sorting on these lists based on the last name of the user(initial), if user name does not have initial then first name is initial . Important thing is that the last name in the list is important. If there is two or... (1 Reply)
Hi,
I am trying to sort the following file in descending order of its fourth column.
2 1 363828 -2.423225e-03
3 1 363828 4.132763e-03
3 2 363828 8.150133e-03
4 1 363828 4.126890e-03
I use
sort -k4,4g -r input.txt > output.txt ... (1 Reply)
Discussion started by: evelibertine
1 Replies
LEARN ABOUT PHP
scandir
SCANDIR(3) 1 SCANDIR(3)scandir - List files and directories inside the specified pathSYNOPSIS
array scandir (string $directory, [int $sorting_order = SCANDIR_SORT_ASCENDING], [resource $context])
DESCRIPTION
Returns an array of files and directories from the $directory.
PARAMETERS
o $directory
- The directory that will be scanned.
o $sorting_order
- By default, the sorted order is alphabetical in ascending order. If the optional $sorting_order is set to SCANDIR_SORT_DESCEND-
ING, then the sort order is alphabetical in descending order. If it is set to SCANDIR_SORT_NONE then the result is unsorted.
o $context
- For a description of the $context parameter, refer to the streams section of the manual.
RETURN VALUES
Returns an array of filenames on success, or FALSE on failure. If $directory is not a directory, then boolean FALSE is returned, and an
error of level E_WARNING is generated.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.4.0 | |
| | |
| | $sorting_orderconstants were added. Any nonzero |
| | value caused descending order in previous ver- |
| | sions. So for all PHP versions, use 0 for ascend- |
| | ing order, and 1 for descending order. An option |
| | for SCANDIR_SORT_NONE behavior did not exist |
| | prior to PHP 5.4.0. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
A simple scandir(3) example
<?php
$dir = '/tmp';
$files1 = scandir($dir);
$files2 = scandir($dir, 1);
print_r($files1);
print_r($files2);
?>
The above example will output something similar to:
Array
(
[0] => .
[1] => ..
[2] => bar.php
[3] => foo.txt
[4] => somedir
)
Array
(
[0] => somedir
[1] => foo.txt
[2] => bar.php
[3] => ..
[4] => .
)
Example #2
PHP 4 alternatives to scandir(3)
<?php
$dir = "/tmp";
$dh = opendir($dir);
while (false !== ($filename = readdir($dh))) {
$files[] = $filename;
}
sort($files);
print_r($files);
rsort($files);
print_r($files);
?>
The above example will output something similar to:
Array
(
[0] => .
[1] => ..
[2] => bar.php
[3] => foo.txt
[4] => somedir
)
Array
(
[0] => somedir
[1] => foo.txt
[2] => bar.php
[3] => ..
[4] => .
)
NOTES
Tip
A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen(3) for more details on how to
specify the filename. See the "Supported Protocols and Wrappers" for links to information about what abilities the various wrappers
have, notes on their usage, and information on any predefined variables they may provide.
SEE ALSO opendir(3), readdir(3), glob(3), is_dir(3), sort(3).
PHP Documentation Group SCANDIR(3)