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Index: U
- \U string escape
: 1.9. Controlling Case
- \u string escape
: 1.9. Controlling Case
- uc( )
: 1.9. Controlling Case
- ucfirst( )
: 1.9. Controlling Case
- UDP protocol
- writing clients
: 17.4. Setting Up a UDP Client
- writing servers
: 17.5. Setting Up a UDP Server
- udpmsg program (example)
: 17.5. Setting Up a UDP Server
- udpqotd program (example)
: 17.5. Setting Up a UDP Server
- umask values
: 7.1. Opening a File
- uname( ) (POSIX)
: 17.8. Finding Your Own Name and Address
- unbuffered input/output
- 7.0. Introduction
- 7.12. Flushing Output
- 8.0. Introduction
- 15.6. Reading from the Keyboard
- uncontrol subroutine
: 15.8. Using POSIX termios
- undef( )
: 11.0. Introduction
- undefined (undef) value
: 1.0. Introduction
- Unicode
: 1.0. Introduction
- unimport( )
- 1.18. Program: psgrep
- 13.15. Creating Magic Variables with tie
- unions of lists
: 4.7. Finding Elements in One Array but Not Another
- unique list elements, extracting
: 4.6. Extracting Unique Elements from a List
- UNIVERSAL package
: 13.8. Determining Subclass Membership
- Unix domain sockets
- 17.0. Introduction
- 17.6. Using UNIX Domain Sockets
- UnixDate( )
: 3.7. Parsing Dates and Times from Strings
- unlink( )
- 9.2. Deleting a File
- 9.8. Removing a Directory and Its Contents
- unpack( )
- 1.1. Accessing Substrings
- 1.4. Converting Between ASCII Characters and Values
- 8.15. Reading Fixed-Length Records
- converting binary and decimal numbers
: 2.4. Converting Between Binary and Decimal
- unshift( )
- circular lists
: 4.16. Implementing a Circular List
- Tie::IxHash module and
: 5.6. Retrieving from a Hash in Insertion Order
- untie( )
: 14.1. Making and Using a DBM File
- uppercase, converting to lowercase
: 1.9. Controlling Case
- URI::Heuristic
: 20.7. Finding Stale Links
- urlify program
: 6.21. Program: urlify
- URLs (Uniform Resource Locators)
: 19.0. Introduction
- extracting from HTML
: 20.3. Extracting URLs
- fetching from Perl scripts
: 20.1. Fetching a URL from a Perl Script
- putting HTML links around
: 6.21. Program: urlify
- redirecting CGI requests
: 19.8. Redirecting to a Different Location
- use pragmas
: 12.0. Introduction
- trapping errors in
: 12.2. Trapping Errors in require or use
- use autouse pragma
: 12.3. Delaying use Until Run Time
- use lib pragma
: 12.7. Keeping Your Own Module Directory
- use locale pragma
- 1.9. Controlling Case
- 6.0. Introduction
- 6.12. Honoring Locale Settings in Regular Expressions
- use overload pragma
: 13.14. Overloading Operators
- Usenet news
: 18.4. Reading and Posting Usenet News Messages
- user input
: (see input)
- user interfaces
: 15.0. Introduction
- checking for waiting input
: 15.9. Checking for Waiting Input
- clearing the screen
: 15.3. Clearing the Screen
- controlling programs with Expect
: 15.13. Controlling Another Program with Expect
- determining window size
: 15.4. Determining Terminal or Window Size
- dialog boxes with Tk
: 15.15. Creating Dialog Boxes with Tk
- editing input
: 15.11. Editing Input
- full-screen mode
: 15.0. Introduction
- managing screen
: 15.12. Managing the Screen
- manipulating terminal directly
: 15.8. Using POSIX termios
- menus with Tk
: 15.14. Creating Menus with Tk
- multiscreen CGI scripts
: 19.12. Writing a Multiscreen CGI Script
- parsing command-line options
: 15.1. Parsing Program Arguments
- reading from keyboard
: 15.6. Reading from the Keyboard
- reading passwords without echo
: 15.10. Reading Passwords
- removing DOS shell window
: 15.17. Removing the DOS Shell Window with Windows Perl/Tk
- ringing terminal bell
: 15.7. Ringing the Terminal Bell
- tcapdemo program
: 15.18. Program: Small termcap program
- testing programs if running interactively
: 15.2. Testing Whether a Program Is Running Interactively
- text color
: 15.5. Changing Text Color
- Tk resize events
: 15.16. Responding to Tk Resize Events
- userstats program (example)
: 14.1. Making and Using a DBM File
- utime( )
: 9.1. Getting and Setting Timestamps
- uvi program (example)
: 9.1. Getting and Setting Timestamps
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Copyright © 1999
O'Reilly & Associates, Inc.
All Rights Reserved.
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