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Index: U

u command (CPAN.pm) : Chapter 2, Reference: u
-u file test operator : 4.5.8. File Test Operators
-U option (dprofpp) : 6.5. The Perl Profiler
-u option (dprofpp) : 6.5. The Perl Profiler
-u option (perl) : 3.2. Command-Line Options
-U option (perl) : 3.2. Command-Line Options
uc() : Chapter 5, Reference: uc
ucfirst() : Chapter 5, Reference: ucfirst
$UID ($<) variable : 4.4.1. Global Special Variables
uidl() (Net::POP3) : Chapter 14, Reference: uidl
umask() : Chapter 5, Reference: umask
unary operators : 4.5.2. Unary Operators
uncompressing Perl source code
2.3.1. Installing on Unix
2.3.2.2. Standard Perl distribution
undef value : 4.2.4. Variables
undef() : Chapter 5, Reference: undef
undelete_message() (Mail::Folder) : Chapter 14, Reference: undelete_message
-underline option (widgets) : 18.3. Common Widget Configuration Options
underscore (_)
filehandle : 4.4.3. Global Special Filehandles
improving number legibility : 4.2.1. Numbers
undump program : 3.2. Command-Line Options
unescape_from() (Mail::Internet) : Chapter 14, Reference: unescape_from
unique_name() (Net::FTP) : Chapter 16, Reference: unique_name
UNIVERSAL module : 8.163. UNIVERSAL
Unix-domain sockets : 13. Sockets
Unix systems
#! (shebang) line : 3. The Perl Interpreter
command processing : 3.1. Command Processing
installing Perl on : 2.3.1. Installing on Unix
unless modifier : 4.3.1.4. Modifiers
unless statement : 4.3.1. Conditionals and Loops
unlink() : Chapter 5, Reference: unlink
unmark() (News::Newsrc) : Chapter 15, Reference: unmark
unmark_list() (News::Newsrc) : Chapter 15, Reference: unmark_list
unmark_range() (News::Newsrc) : Chapter 15, Reference: unmark_range
unmarked_articles() (News::Newsrc) : Chapter 15, Reference: unmarked_articles
unpack() : Chapter 5, Reference: unpack
unpack_sockaddr_in() (Socket) : Chapter 13, Reference: unpack_sockaddr_in
unpack_sockaddr_un() (Socket) : Chapter 13, Reference: unpack_sockaddr_un
unpacking Perl source code
2.3.1. Installing on Unix
2.3.2.2. Standard Perl distribution
unpost() (Menu widget) : 18.15.2. Menu Methods
unsafe operations, allowing : 3.2. Command-Line Options
unshift() : Chapter 5, Reference: unshift
unsub_groups() (News::Newsrc) : Chapter 15, Reference: unsub_groups
unsubscribe() (News::Newsrc) : Chapter 15, Reference: unsubscribe
untie() : Chapter 5, Reference: untie
until modifier : 4.3.1.4. Modifiers
until statement : 4.3.1.1. while loops
update_message() (Mail::Folder) : Chapter 14, Reference: update_message
URI modules : 17.5. The URI Module
URI::Escape : 17.5. The URI Module
URI::Heuristic : 17.5. The URI Module
URI::URL : 17.5.2. URI::URL
URI::URL module : 17.1. LWP Overview
URIs (Universal Resource Identifiers) : 17.1. LWP Overview
url()
CGI.pm module : Chapter 10, Reference: url
HTTP::Daemon module : Chapter 17, Reference: url
HTTP::Request module : Chapter 17, Reference: url
URLs (uniform resource locators)
(see also Win32 modules, Win32::Internet module)
Chapter 19, Reference: CanonicalizeURL
encoding : 9.2. URL Encoding
extra path information : 9.3. Extra Path Information
URI::URL module
17.1. LWP Overview
17.5.2. URI::URL
use directives
7. Packages, Modules, and Objects
7.2. Modules
use English : 4.4. Special Variables
use integer : 4.5.3. Arithmetic Operators
use Socket : 13.1.1. Initializing a Socket
use_alarm() (LWP::UserAgent) : Chapter 17, Reference: use_alarm
use_named_parameters() (CGI.pm) : Chapter 10, Reference: use_named_parameters
Usenet news : 15. Usenet News
Net::News module : 15.2. Net::NNTP
News::Newsrc module : 15.3. The News::Newsrc Module
Usenet newsgroups, Perl-related : 1.4.1. The comp.lang.perl.* Newsgroups
use() : Chapter 5, Reference: use
user()
Mail::Address module
Chapter 14, Reference: user
14.2.6. Parse Email Addresses with Mail::Address
Net::POP3 module
Chapter 14, Reference: user
14.1.3. Retrieving Email with Net::POP3
URI::URL module : Chapter 17, Reference: user
USER command (POP3) : 14.1.3. Retrieving Email with Net::POP3
User::grent module : 8.164. User::grent
User() (Mail::POP3Client) : Chapter 14, Reference: User
User::pwent module : 8.165. User::pwent
user_agent() (CGI.pm) : Chapter 10, Reference: user_agent
user_name() (CGI.pm) : Chapter 10, Reference: user_name
UserAgent object
17.1. LWP Overview
17.2. The LWP Modules
17.2.3. LWP::UserAgent
UserAgent() (Win32::Internet) : Chapter 19, Reference: UserAgent
UserCreate() (Win32::NetAdmin) : Chapter 19, Reference: UserCreate
Username() (Win32::Internet) : Chapter 19, Reference: Username
users, fetching information on : 5.1. Perl Functions by Category
utime() : Chapter 5, Reference: utime


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