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Index: R

while loops using

45.16. Standard Input to a for Loop
45.22. Handling Files Line-by-Line

read command (ex) : 33.4. Useful ex Commands

read permission

22.2. Tutorial on File and Directory Permissions
22.19. Shell Scripts Must be Readable and (Usually) Executable
execute permission without : 22.12. A Directory that People Can Access but Can't List

read-only files : 22.9. Protect Important Files: Make Them Unwritable

read.base program : 48.10. Working with Names and Addresses

README files : 52.8.2.6. An Easy Build

Ready-to-Run Software

52.5.5. What to Do if You Have Problems
52.7.1. Alternative Media
52.8.2.1. Copying the Sources
contacting : 52.9. Software Support from RTR
software support : 52.9. Software Support from RTR
technical support : 52.8.1.2. Problems

real memory, maximum amount of : 39.3. The csh time variable

real-time priorities : 39.9. Know When to Be "nice" to OTher Users...and When

real-time submission : 39.9.3. System V C Shell nice

recomment script

35.4. recomment: Clean Up Program Comment Blocks
52.4. Quick Descriptions of What's on the Disc

recovering files : 30.24. vi/ex File Recovery vs. Networked Filesystems

recursive aliases : 10.6. Avoiding C Shell Alias Loops

redirecting

csh and : 13.5. Redirection in C Shell: Capture Errors, Too?

file descriptors : 45.21. n>&m: Swap Standard Output and Standard Error

I/O loops : 45.22. Handling Files Line-by-Line

loops : 45.23. The Ins and Outs of Redirected I/O Loops

noclobber variable : 6.9. Special C Shell Variables

standard error

45.20. Overview: Open Files and File Descriptors
45.21. n>&m: Swap Standard Output and Standard Error
47.2.1.1. Writing Files

standard input

1.30. Redirecting Input and Output
13.1. Using Standard Input and Output
45.20. Overview: Open Files and File Descriptors
47.2.1.2. Reading Files

standard output

1.30. Redirecting Input and Output
13.1. Using Standard Input and Output
45.20. Overview: Open Files and File Descriptors
45.21. n>&m: Swap Standard Output and Standard Error

tee program : 13.9. Send Output Two or More Places with tee

while loops : 45.22. Handling Files Line-by-Line

redirecting input/output

tpipe command for : 13.11. tpipe-Redirecting stdout to More than One Place

redo script

11.14.1. In the C Shell: redo
52.4. Quick Descriptions of What's on the Disc

redraw screen command : 42.5. Checklist: Screen Size Messed Up?

regular expressions

21.14. Automatically Appending the Date to a Filename

26.1. That's an Expression

26.3. Understanding Expressions

(see also pattern matching)

extended : 26.4.11. Extended Regular Expressions

metacharacters

for different UNIX programs : 26.9. Valid Metacharacters for Different UNIX Programs
examples of : 26.8. I Never Meta Character I Didn't Like

metacharacters in

8.19. "Special" Characters and Operators
26.4. Using Metacharacters in Regular Expressions
26.10. Pattern Matching Quick Reference with Examples

pattern context : 26.5. Getting Regular Expressions Right

pattern matching quick reference : 26.10. Pattern Matching Quick Reference with Examples

testing : 26.6. Just What Does a Regular Expression Match?

wildcards versus : 26.2. Don't Confuse Regular Expressions with Wildcards

rehash command : 4.2. A bin Directory for Your Programs and Scripts

examples : 44.2. Writing a Simple Shell Program

relational operators : (see operators, relational))

relative pathnames

1.21. Making Pathnames
2.6. Use Absolute Pathnames in Shell Setup Files
14.2. Using Relative and Absolute Pathnames
14.3. What Good Is a Current Directory?
18.6. Stale Symbolic Links
in angle brackets : 52.8.2.7. Functions, Libraries, and Header Files

relink script

18.14. Relinking Multiple Symbolic Links
52.4. Quick Descriptions of What's on the Disc

reminder mail, sending : 40.11. Send Yourself Reminder Mail

remote

directories : 5.6. Checklist: Terminal Hangs When I Log In

echo : 41.2.1. How We Made It This Far (Back?)

restoration from backups : 20.4.2. Remote Restoring

tape drives

20.5. Using tar to a Remote Tape Drive
20.6. Writing a Tape Drive on a Remote Machine

removing

command-line arguments : 44.15.2. With a Loop

open files : 45.10. Removing a File Once It's Opened - for Security and Easy Cleanup

self-removing scripts

45.4. Fun with #!
45.10. Removing a File Once It's Opened - for Security and Easy Cleanup

removing files : (see deleting files)

ren command : 52.4. Quick Descriptions of What's on the Disc

ren script : 18.11. Renaming Files with ren

rename script

18.10. There's More than One Way to Do It
52.4. Quick Descriptions of What's on the Disc

renaming files

18.2. What's Really in a Directory
18.9. Renaming, Copying, or Comparing a Set of Files
(see also copying files; moving files)
interactively : 18.12. Renaming a List of Files Interactively

renice command

12.5. System Overloaded? Try Stopping Some Jobs
39.9. Know When to Be "nice" to OTher Users...and When
39.11. Changing a Job's Priority Under BSD UNIX

rep command vs. vis command : 51.7. When You Get Impatient

repeat command : 9.25. The C Shell repeat Command

repeating commands : 11.8. Repeating a Cycle of Commands

report, summarizing execution statistics : 38.5. The ps Command

reset command : 5.11. Initializing the Terminal with tset

resetting terminals : 42.4. Checklist for Resetting a Messed Up Terminal

resident text pages, average kilobytes of : 39.3. The csh time variable

resize (xterm) command : 42.5. Checklist: Screen Size Messed Up?

resources

contention issues : 39.12. What Makes Your Computer Slow? How Do You Fix It?
overloaded : 12.5. System Overloaded? Try Stopping Some Jobs

restart command (lpc) : 43.3. Printer Control with lpc

restarting at jobs automatically : 40.8. Automatically Restarting at Jobs

RETURN characters : (see newline characters)

return command (awk) : 33.11.7. Alphabetical Summary of Commands

RETURN key, not needed with commands : 45.32. A Better read Command: grabchars

revision control programs

file versions and : 1.15. Filenames

Revision Control System : (see RCS)

revision marks : (see execute permission)

.rhosts file : 20.5. Using tar to a Remote Tape Drive

right angle bracket : (see >)

rlogin utility

1.33. UNIX Networking and Communications
2.4. Tip for Changing Account Setup: Keep a Shell Ready
2.12. Automatic Setups for Different Terminals
stalled connection with : 42.2.4. Stalled Data Connection?

rm command

23.2. rm and Its Dangers

52.4. Quick Descriptions of What's on the Disc

-b option : 21.11. Safer Removing, Moving, and Copying

-f option

23.10. Deletion with Prejudice: rm -f
44.12. Trapping Exits Caused by Interrupts

-i option

21.11. Safer Removing, Moving, and Copying
23.4. Answer "Yes" or "No" Forever with yes
23.5. Remove Some, Leave Some
23.7. Safer File Deletion in Some Directories

rmdir command

23.17. Problems Deleting Directories
52.4. Quick Descriptions of What's on the Disc

root directory

1.19. The Tree Structure of the Filesystem
1.21. Making Pathnames
installation process and : 52.8.2.6. An Easy Build

root user

password for

1.23. File Access Permissions
1.24. The Superuser (Root)

su command and : (see su command)

rot program

35.23. Rotating Text
52.4. Quick Descriptions of What's on the Disc

rotating text : 30.22.2. Filtering Text with vi

rprnt character : 9.3. Reprinting Your Command Line with CTRL-r

rprnt key : 5.9. Setting Your Erase, Kill, and Interrupt Characters

rsh utility

1.33. UNIX Networking and Communications
20.6. Writing a Tape Drive on a Remote Machine
restoring from remote tape drives : 20.5. Using tar to a Remote Tape Drive

rtrpatch.pcal file : 52.8.2.5. Applying Patches

RTS (Request to Send) : 41.2.4. Flow Control (We Hope)

RTS/CTS flow control : 41.2.4. Flow Control (We Hope)

runsed script

4.3. Organizing Nonexecutable Scripts
34.3.2. runsed
52.4. Quick Descriptions of What's on the Disc

runtime script

39.4. Average Command Runtimes with runtime
52.4. Quick Descriptions of What's on the Disc

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