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Index: U
- UIDs
: (see user IDs)
- ul command : UNIX Power Tools, 43.18. How nroff Makes Bold and Underline; How to Remove It
- ulimit
- ul command : UNIX Power Tools, 43.18. How nroff Makes Bold and Underline; How to Remove It
- Ultrix
- umask command
- Learning the Korn Shell, 10.2.1. umask
- Learning the Korn Shell, A.6. Workalikes on PC Platforms
- Learning the UNIX Operating System, 3.6. Customizing Your Account
- UNIX Power Tools, 14.14. Automatic Setup When You Enter/Exit a Directory
- UNIX Power Tools, 22.2.1. User, Group, and World
- UNIX Power Tools, 22.4. Setting an Exact umask
- UNIX Power Tools, 45.36. Shell Lockfile
- UNIX Power Tools, 52.5.3.3. Running Install
- UNIX in a Nutshell, Chapter 2, Reference: umask
- UNIX in a Nutshell, Chapter 4, Reference: umask
- UNIX in a Nutshell, Chapter 5, Reference: umask
- (see also chmod command)
- as logical XOR with file permission : Learning the Korn Shell, 10.2.1. umask
- setting in shell scripts : UNIX Power Tools, 38.4. Subshells
- Learning the Korn Shell, A.6. Workalikes on PC Platforms
- Learning the Korn Shell, 10.2.1. umask
- unabbreviate command (ex)
: UNIX in a Nutshell, Chapter 9, Reference: unabbreviate
- unalias
- uname command
- unarchiving
: (see archives)
- uncluttering logins : UNIX Power Tools, 2.15. Unclutter Logins: Show Login Messages Just Once
- uncompress
- uncluttering logins : UNIX Power Tools, 2.15. Unclutter Logins: Show Login Messages Just Once
- undelete program
: UNIX Power Tools, 52.4. Quick Descriptions of What's on the Disc
- underlined text : UNIX Power Tools, 43.18. How nroff Makes Bold and Underline; How to Remove It
- underscore (_) in filenames : UNIX Power Tools, 1.15. Filenames
- undisplay command (dbx) : UNIX in a Nutshell, Chapter 20, Reference: undisplay
- undo command (ex) : UNIX in a Nutshell, Chapter 9, Reference: undo
- undoing
- underlined text : UNIX Power Tools, 43.18. How nroff Makes Bold and Underline; How to Remove It
- emacs
: UNIX in a Nutshell, 7.2.5. Stopping and Undoing Commands
- vi
- Learning the vi Editor, 2.3.5.4. Problems with Deletions
- Learning the vi Editor, 2.3.8. Repeating or Undoing Your Last Command
- Learning the vi Editor, 2.3.8.2. Undo
- Learning the vi Editor, 6.1. Confirming Substitutions
- UNIX Power Tools, 30.8. Get Back What You Deleted with Numbered Buffers
- UNIX Power Tools, 30.10. Confirming Substitutions in ex and vi
- UNIX Power Tools, 30.38. Finding Your Place with Undo
- Learning the vi Editor, 2.3.8. Repeating or Undoing Your Last Command
- Learning the vi Editor, 2.3.5.4. Problems with Deletions
- emacs
: UNIX in a Nutshell, 7.2.5. Stopping and Undoing Commands
- unedit command (SCCS)
- unexpand command
- unexpand script
: UNIX Power Tools, 24.6. Save Space with Tab Characters
- unget command (SCCS) : UNIX in a Nutshell, Chapter 17, Reference: unget
- unhash command (csh) : UNIX in a Nutshell, Chapter 5, Reference: unhash
- union metacharacter, lack of : sed & awk, 3.2.9. Alternative Operations
- union of regular expressions
- unget command (SCCS) : UNIX in a Nutshell, Chapter 17, Reference: unget
- uniq command
- units command
: UNIX in a Nutshell, Chapter 2, Reference: units
- units of measurements (nroff/troff) : UNIX in a Nutshell, 12.3.2. Specifying Measurements
- UNIX
- units of measurements (nroff/troff) : UNIX in a Nutshell, 12.3.2. Specifying Measurements
- accessing other platforms
: Learning the UNIX Operating System, 4.4.6. Files on Other Operating Systems
- advantages
- binary programs
: UNIX Power Tools, 52.8.2. Compiling Source Code
- bundling software packages : UNIX in a Nutshell, 1.2. Bundling
- command reference : Learning the UNIX Operating System, B.1. Commands and Their Meanings
- Command Syntax Standard Rules : Learning the Korn Shell, 6.1.3. getopts
- definition of priority : UNIX Power Tools, 39.9. Know When to Be "nice" to OTher Users...and When
- documentation
- bundling software packages : UNIX in a Nutshell, 1.2. Bundling
- drawbacks of
: UNIX Power Tools, 1.34. What's Wrong with UNIX
- environment : Learning the UNIX Operating System, 1.1. Working in the UNIX Environment
- filenames in BSD : Learning the Korn Shell, 7.2.2.3. Code blocks
- filenames in System V
- environment : Learning the UNIX Operating System, 1.1. Working in the UNIX Environment
- flexible handling of TAB characters
: UNIX Power Tools, 41.4. How UNIX Handles TAB Characters
- identifying versions : UNIX Power Tools, 50.8. Which Version Am I Using?
- interprocess communication in : Learning the Korn Shell, 8.3. Signals
- networking and communications utilities : UNIX Power Tools, 1.33. UNIX Networking and Communications
- platforms : UNIX Power Tools, 52.3. Shrink-Wrapped Software for UNIX
- Programmer's Manual
- identifying versions : UNIX Power Tools, 50.8. Which Version Am I Using?
- references for
: Learning the UNIX Operating System, A.1. General UNIX Books
- security : (see security)
- shells : (see shells)
- shell history : Learning the Korn Shell, 1.3. History of UNIX Shells
- starting X from : Learning the UNIX Operating System, 2.2.2. B. Starting X from a Standard UNIX Session
- terminal interface
- security : (see security)
- time on
: UNIX Power Tools, 39.1. Which Time Is It?
- two main branches of : UNIX Power Tools, 41.2.1. How We Made It This Far (Back?)
- utilities : Learning the Korn Shell, 1.7.1. Standard I/O
- versions
- two main branches of : UNIX Power Tools, 41.2.1. How We Made It This Far (Back?)
- Learning the UNIX Operating System, Versions of UNIX
- UNIX Power Tools, About UNIX Versions
- UNIX in a Nutshell, 1.1. Merging the Traditions
- A/UX
- UNIX Power Tools, About UNIX Versions
- AIX
- BSD
- Learning the Korn Shell, 1.3. History of UNIX Shells
- Learning the Korn Shell, 1.9.5. Control Keys
- Learning the Korn Shell, 2.3.4. Moving Around in the History File
- Learning the Korn Shell, 2.3.6. Miscellaneous Commands
- Learning the Korn Shell, 2.4. Vi Editing Mode
- Learning the Korn Shell, 3.4. Shell Variables
- Learning the Korn Shell, 3.4.2.2. Mail Variables
- Learning the Korn Shell, 4.4. Command Substitution
- Learning the Korn Shell, 7.2.2.3. Code blocks
- Learning the Korn Shell, 8.3. Signals
- Learning the Korn Shell, 8.3.3. ps
- Learning the Korn Shell, 8.3.3.2. BSD
- Learning the Korn Shell, 9.2.3.3. Breakpoints
- Learning the Korn Shell, A.2. The IEEE 1003.2 POSIX Shell Standard
- Learning the Korn Shell, A.4. pdksh
- Learning the Korn Shell, 1.9.5. Control Keys
- Learning the Korn Shell, 1.3. History of UNIX Shells
- HP/UX
- SCO
: Learning the Korn Shell, 1.9.5. Control Keys
- SunOS
- Learning the Korn Shell, 1. Korn Shell Basics
- Learning the Korn Shell, 1.3. History of UNIX Shells
- Learning the Korn Shell, 1.9.5. Control Keys
- Learning the Korn Shell, 4.4. Command Substitution
- Learning the Korn Shell, 8.3.3. ps
- Learning the Korn Shell, A.1. The Bourne Shell
- Learning the Korn Shell, A.3. wksh
- Learning the Korn Shell, A.4. pdksh
- Learning the Korn Shell, 1.3. History of UNIX Shells
- Learning the Korn Shell, 1. Korn Shell Basics
- System III
- System V
- Learning the Korn Shell, 1.9.5. Control Keys
- Learning the Korn Shell, 3.4. Shell Variables
- Learning the Korn Shell, 3.4.2.4. Terminal Types
- Learning the Korn Shell, 6.3.3. String Formatting Options
- Learning the Korn Shell, 7.2.2.3. Code blocks
- Learning the Korn Shell, 8.2. Job Control
- Learning the Korn Shell, 8.3. Signals
- Learning the Korn Shell, 8.3.3. ps
- Learning the Korn Shell, 9.2.3.3. Breakpoints
- Learning the Korn Shell, A.2. The IEEE 1003.2 POSIX Shell Standard
- Learning the Korn Shell, 3.4. Shell Variables
- Learning the Korn Shell, 1.9.5. Control Keys
- System V Release 4
- that don't support job control
: Learning the Korn Shell, 8.2. Job Control
- Ultrix
- UTS
: Learning the Korn Shell, 1. Korn Shell Basics
- Version 6 : Learning the Korn Shell, 4.3.2. Patterns and Regular Expressions
- Version 7
- Version 6 : Learning the Korn Shell, 4.3.2. Patterns and Regular Expressions
- Xenix
- Learning the UNIX Operating System, Versions of UNIX
- workalikes
: Learning the Korn Shell, A.6. Workalikes on PC Platforms
- xterm windows : (see xterm windows)
- accessing other platforms
: Learning the UNIX Operating System, 4.4.6. Files on Other Operating Systems
- UNIX commands : Learning the Korn Shell, C.4. UUCP
- compare files (diff)
: Learning the vi Editor, 7.4.5. ex Scripts Built by diff
- execute from vi : Learning the vi Editor, 7.2. Executing UNIX Commands
- filter text through : Learning the vi Editor, 7.2.1. Filtering Text Through a Command
- execute from vi : Learning the vi Editor, 7.2. Executing UNIX Commands
- compare files (diff)
: Learning the vi Editor, 7.4.5. ex Scripts Built by diff
- UNIX System Laboratories (USL)
- unkillable processes, cleaning up
: UNIX Power Tools, 38.15. Cleaning Up an Unkillable Process
- unlimit command (csh) : UNIX in a Nutshell, Chapter 5, Reference: unlimit
- unlimit coredumpsize command : UNIX Power Tools, 24.5. Limiting File Sizes
- unlink command : UNIX Power Tools, 23.15. Using unlink to Remove a File with a Strange Name
- unlinking files : UNIX Power Tools, 24.3. Unlinking Open Files Isn't a Good Idea
- unmap command (ex) : UNIX in a Nutshell, Chapter 9, Reference: unmap
- unpack command
- unlimit command (csh) : UNIX in a Nutshell, Chapter 5, Reference: unlimit
- unprintable characters
: (see special characters)
- unprintable files : UNIX Power Tools, 25.5. Page Through Compressed, RCS, Unprintable Files
- unset
- unprintable files : UNIX Power Tools, 25.5. Page Through Compressed, RCS, Unprintable Files
- unset variable errors
: UNIX Power Tools, 40.4. Choosing the Shell Run (We Hope) by at
- unsetenv command
- unshar program
- unshar software
: UNIX Power Tools, 52.8.2.4. Unsharring the Sources
- untarring software : UNIX Power Tools, 52.8.2.3. Untarring the Sources
- unterrupt characters : UNIX Power Tools, 5.9. Setting Your Erase, Kill, and Interrupt Characters
- until
- untarring software : UNIX Power Tools, 52.8.2.3. Untarring the Sources
- Learning the Korn Shell, 5.4. select
- Learning the Korn Shell, 5.5. while and until
- UNIX Power Tools, 44.10.1. Looping Until a Command Succeeds
- UNIX in a Nutshell, Chapter 4, Reference: until
- in Bourne shells : UNIX Power Tools, 44.10.1. Looping Until a Command Succeeds
- differences with while : Learning the Korn Shell, 5.5. while and until
- examples : UNIX Power Tools, 44.10.1. Looping Until a Command Succeeds
- redirecting I/O to : Learning the Korn Shell, 7.2.2.2. I/O Redirection and multiple commands
- syntax : Learning the Korn Shell, 5.5. while and until
- while loops compared to : UNIX Power Tools, 44.10.2. Looping Until a Command Fails
- Learning the Korn Shell, 5.5. while and until
- Learning the Korn Shell, 5.4. select
- up command (dbx)
: UNIX in a Nutshell, Chapter 20, Reference: up
- updateb script : UNIX Power Tools, 17.19. Finding Files (Much) Faster with a find Database
- uppercase : (see case)
- uptime command
- updateb script : UNIX Power Tools, 17.19. Finding Files (Much) Faster with a find Database
- usage information
- use command (dbx)
: UNIX in a Nutshell, Chapter 20, Reference: use
- USENET : UNIX Power Tools, 1.33. UNIX Networking and Communications
- comp.binaries.os2 newsgroup
: Learning the Korn Shell, A.6. Workalikes on PC Platforms
- comp.sources.unix newsgroup : Learning the Korn Shell, A.4. pdksh
- comp.binaries.os2 newsgroup
: Learning the Korn Shell, A.6. Workalikes on PC Platforms
- $USER, examples
: UNIX Power Tools, 48.4.3. Automating Your Own Calendar
- user dictionaries : (see dictionary files)
- USER environment variable
- user dictionaries : (see dictionary files)
- user IDs (UIDs) : UNIX Power Tools, 38.3. Managing Processes: Overall Concepts
- file access : UNIX Power Tools, 1.23. File Access Permissions
- user shell variable
: UNIX in a Nutshell, 5.3.3. Predefined Shell Variables
- user time
- user's login shell, killing
: UNIX Power Tools, 38.10. Destroying Processes with kill
- user-controlled multitasking : Learning the Korn Shell, 8. Process Handling
- user-defined functions : sed & awk, 9.3. Writing Your Own Functions
- user-defined signals : (see USR1 signal)
- user-state CPU time : UNIX Power Tools, 39.5. Why Is the System So Slow?
- username field in crontab entries : UNIX Power Tools, 40.12.1. Execution Scheduling
- usernames
- user-controlled multitasking : Learning the Korn Shell, 8. Process Handling
- users
- UNIX Power Tools, 17.16. Searching by Owner and Group
- (see also groups)
- classes of : UNIX Power Tools, 39.12.4. User Communities
- displaying data about : UNIX in a Nutshell, Chapter 2, Reference: finger
- effect on system performance : UNIX Power Tools, 39.12.4. User Communities
- groups : (see groups)
- IDs, displaying : UNIX in a Nutshell, Chapter 2, Reference: id
- logged-in
- (see also groups)
- displaying list
- displaying system usage
: UNIX in a Nutshell, Chapter 2, Reference: ruptime
- information on logged in
- ownership
: (see ownership, file)
- permissions : (see permissions)
- sending email messages to all : UNIX in a Nutshell, Chapter 2, Reference: wall
- SUID bit
- permissions : (see permissions)
- terminating processes of
: UNIX in a Nutshell, Chapter 2, Reference: shutdown
- who command for : (see who command)
- UNIX Power Tools, 17.16. Searching by Owner and Group
- users command
: UNIX in a Nutshell, Chapter 2, Reference: users
- /usr directory
- /usr/bin directory
- /usr/include, header files in
: UNIX Power Tools, 52.8.2.7. Functions, Libraries, and Header Files
- /usr/lib : Learning the Korn Shell, 9.2.1.1. The driver script
- /usr/lib/crontab file
: UNIX Power Tools, 40.12.1. Execution Scheduling
- /usr/lib/crontab.local file : UNIX Power Tools, 40.12.1. Execution Scheduling
- /usr/lib/crontab file
: UNIX Power Tools, 40.12.1. Execution Scheduling
- /usr/local directory
: UNIX Power Tools, 52.5.3.5. Installing Everything Using the Defaults
- /usr/tmp directory
- USR1 (user-defined) signal
: UNIX Power Tools, 38.8. What Are Signals?
- utilities, combining : UNIX Power Tools, 44.1. Everyone Should Learn Some Shell Programming
- UTS : Learning the Korn Shell, 1. Korn Shell Basics
- UUCP (UNIX-to-UNIX copy)
- utilities, combining : UNIX Power Tools, 44.1. Everyone Should Learn Some Shell Programming
- uucp command
- uudecode command
- uuencode command
- uuglist command
: UNIX in a Nutshell, Chapter 2, Reference: uuglist
- uulog command
- uuname command
- UUNET
: UNIX Power Tools, 52.7.2.3. UUCP
- uupick command
- uustat command
- uuto command
- uutot.awk script (example)
: sed & awk, 13.1. uutot.awk - Report UUCP Statistics
- uux command : UNIX in a Nutshell, Chapter 2, Reference: uux
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