05-06-2009
Remind me not to fly to Oklahoma (or even anywhere near the airspace) in the foreseeable future.
Quick overview of find:
- General syntax: find [path] [command [parameter]]+ [action [parameter]]
- path can be anything from . (current dir) to a list of directories to search
- command specifies what you want to find:
- -name is used most often, it specifies the name (Duh) of the object you're looking for. y* will look for entries starting with y (yes, yep.txt, yargh.bin, ...), desaster*.doc will look for 'desaster_plan.doc', 'desaster-will-happen.doc', ..., but not 'omgwereallgoingtodie.doc'
- -type tells find what type of entry you want: d for directories, f for files, l for symbolic links, ...
- -size [+-]size to find entries larger/smaller/equal to given size
- -user username belonging to user (-uid if you only have the ID, eg if the user no loger is in /etc/passwd)
- same for -group and -gid
- actions specify what you want to do with what you found:
- -print just prints the path to stdout (default action)
- -print0 as above, only as zero-terminated strings (if you've got spaces bugging you)
- -exec runs a command, with {} as the placeholder. Needs ; (escaped) to tell it when the command line ends
- -ls list, like ls -l
There's a lot more (boolean expressions, ...), look those up in the man page.
If you want to learn UNIX a bit quicker (and with less lives on the line), install Linux || OpenSolaris || *BSD at home.
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LEARN ABOUT PHP
posix_getpwuid
POSIX_GETPWUID(3) 1 POSIX_GETPWUID(3)
posix_getpwuid - Return info about a user by user id
SYNOPSIS
array posix_getpwuid (int $uid)
DESCRIPTION
Returns an array of information about the user referenced by the given user ID.
PARAMETERS
o $uid
- The user identifier.
RETURN VALUES
Returns an associative array with the following elements:
The user information array
+--------+---------------------------------------------------+
|Element | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| name | |
| | |
| | The name element contains the username of the |
| | user. This is a short, usually less than 16 char- |
| | acter "handle" of the user, not the real, full |
| | name. |
| | |
|passwd | |
| | |
| | The passwd element contains the user's password |
| | in an encrypted format. Often, for example on a |
| | system employing "shadow" passwords, an asterisk |
| | is returned instead. |
| | |
| uid | |
| | |
| | User ID, should be the same as the $uid parame- |
| | ter used when calling the function, and hence |
| | redundant. |
| | |
| gid | |
| | |
| | The group ID of the user. Use the function |
| | posix_getgrgid(3) to resolve the group name and a |
| | list of its members. |
| | |
| gecos | |
| | |
| | GECOS is an obsolete term that refers to the |
| | finger information field on a Honeywell batch |
| | processing system. The field, however, lives on, |
| | and its contents have been formalized by POSIX. |
| | The field contains a comma separated list con- |
| | taining the user's full name, office phone, |
| | office number, and home phone number. On most |
| | systems, only the user's full name is available. |
| | |
| dir | |
| | |
| | This element contains the absolute path to the |
| | home directory of the user. |
| | |
| shell | |
| | |
| | The shell element contains the absolute path to |
| | the executable of the user's default shell. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
Example use of posix_getpwuid(3)
<?php
$userinfo = posix_getpwuid(10000);
print_r($userinfo);
?>
The above example will output something similar to:
Array
(
[name] => tom
[passwd] => x
[uid] => 10000
[gid] => 42
[gecos] => "tom,,,"
[dir] => "/home/tom"
[shell] => "/bin/bash"
)
SEE ALSO
posix_getpwnam(3), POSIX man page GETPWNAM(3).
PHP Documentation Group POSIX_GETPWUID(3)