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# Index: G

g command : 11.7. History Substitutions
gawk utility
  33.11. Quick Reference: awk
  50.12. Common UNIX Error Messages
  52.4. Quick Descriptions of What's on the Disc
  52.5.3.4. Installing a Single Program
  (see also awk utility; nawk utility)
  version history : 33.12. Versions of awk
gcc C compiler : 52.8.1.1. Missing Programs
get command (SCCS) : 20.13. SCCS Basics
getmac script : 52.4. Quick Descriptions of What's on the Disc
getopt command
  44.16. Handling Command-Line Arguments with a for Loop
  44.18. Standard Command-Line Parsing
  52.4. Quick Descriptions of What's on the Disc
  examples : 44.18. Standard Command-Line Parsing
  parsing output : 44.18. Standard Command-Line Parsing
getopts command : 44.16. Handling Command-Line Arguments with a for Loop
  advantages : 44.17. Handling Arguments with while and shift
getty program : 38.2. fork and exec
glass ttys : 41.2.1. How We Made It This Far (Back?)
glimpse script
  27.8. glimpse and agrep
  52.4. Quick Descriptions of What's on the Disc
global command (ex) : 33.4. Useful ex Commands
gnroff program
  43.17. Don't Have nroff? Try gnroff or awf
  52.4. Quick Descriptions of What's on the Disc
GNU awk : (see awk utility)
GNU Emacs : (see Emacs editor)
GNU fileutils : 52.4. Quick Descriptions of What's on the Disc
GNU make utility : 52.8.1.1. Missing Programs
"go" character : 41.2.4. Flow Control (We Hope)
grabchars : 52.4. Quick Descriptions of What's on the Disc
  -b option : 45.32. A Better read Command: grabchars
  -d option : 45.32. A Better read Command: grabchars
  -t option : 45.32. A Better read Command: grabchars
grabchars program
  44.13. read: Reading from the Keyboard
  45.32. A Better read Command: grabchars
  examples : 45.32. A Better read Command: grabchars
graphics
  conversion programs : 43.25. The Portable Bitmap Package
  pbm (portable bitmap) : 43.25. The Portable Bitmap Package
  pbm (portable bitmap) format : 43.25. The Portable Bitmap Package
  pgm (graymap) format : 43.25. The Portable Bitmap Package
  pnm format : 43.25. The Portable Bitmap Package
  ppm (pixmap) format : 43.25. The Portable Bitmap Package
Graphics script : 52.4. Quick Descriptions of What's on the Disc
> (greater than sign)
  with for loop : 9.12. The Bourne Shell for Loop
greater than sign (<)
  with for loop : 9.12. The Bourne Shell for Loop
grep
  redirecting output : 45.20. Overview: Open Files and File Descriptors
grep command
  9.16. Command Substitution
  27.1. Different Versions of grep
  27.2. Searching for Text with grep
  27.8. glimpse and agrep
  27.9. New greps Are Much Faster
  52.4. Quick Descriptions of What's on the Disc
  (see also agrep script; egrep script; fgrep script; hgrep script)
  addup script using : 49.7. Total a Column with addup
  -c option
    15.8. Getting a List of Non-Matching Files with grep -c
    49.7. Total a Column with addup
  compound searches : 27.14. Compound Searches
  customizing prompt character : 1.9. Which Shell Am I Running?
  customizing with perl : 27.12. Make Custom grep Commands (etc.) with perl
  directory trees and : 17.20. grepping a Directory Tree (and a Gotcha)
  example of : 1.4. Using Pipes to Create a New Tool
  examples : 49.7. Total a Column with addup
  -f option : 44.17. Handling Arguments with while and shift
  file searches with
    9.24. Get File List by Editing Output of ls -l, grep, etc.
    9.24.2. Search for Text with grep
  -i option : 17.21. lookfor: Which File Has that Word?
  -l option
    9.16. Command Substitution
    15.7. Getting a List of Matching Files with grep -l
  multiline : 27.11. A Multiline Context grep Using sed
  sed with
    27.11. A Multiline Context grep Using sed
    27.15. Narrowing a Search Quickly
  with type-ahead feature : 9.19. For the Impatient: Type-Ahead
  -v option
    27.3. Finding Text That Doesn't Match
    45.5. A File That Shows Itself... and What #! Does
    51.4. Who's On?
  -w option : 27.4. Finding a Pattern Only When It's a Word
groff : 52.4. Quick Descriptions of What's on the Disc
groff program : 43.16. groff
group ID (GID) : 38.3. Managing Processes: Overall Concepts
grouping commands (sh) : 13.8. Using {list} to Group Bourne Shell Commands
groups
  17.16. Searching by Owner and Group
  22.2.2. Which Group is Which?
  22.13. Groups and Group Ownership
  (see also users)
  (see SGID bit)
  changing/specifying : 22.5. Group Permissions in a Directory with the setgid Bit
  defined : 22.2.1. User, Group, and World
  denying permission by : 22.14. Add Users to a Group to Deny Permission
  newgrp command : 22.13. Groups and Group Ownership
  searching by : 17.16. Searching by Owner and Group
groups command
  22.13. Groups and Group Ownership
  22.15. Juggling Permissions
groups program : 52.4. Quick Descriptions of What's on the Disc
gsub command (awk) : 33.11.7. Alphabetical Summary of Commands
gunzip utility
  19.5. Using tar to Create and Unpack Archives
  19.7. Extracting Files from a Compressed Archive
  24.7. Compressing Files to Save Space
  52.4. Quick Descriptions of What's on the Disc
gxcat command : 24.7. Compressing Files to Save Space
.gz filename extension : 1.17. Filename Extensions
gzcat script
  19.7. Extracting Files from a Compressed Archive
  52.4. Quick Descriptions of What's on the Disc
  in Bourne shell scripts : 44.15.1. With the $@"
  examples : 44.15.1. With the $@"
gzip utility
  19.5. Using tar to Create and Unpack Archives
  24.6. Save Space with Tab Characters
  24.7. Compressing Files to Save Space
  52.4. Quick Descriptions of What's on the Disc
gzipped file extension : 1.17. Filename Extensions

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