Chapter 4. GNU Utilities for Power Users

[Page 107]

4. GNU Utilities for Power Users

Motivation

Prerequisites

Objectives

Presentation

Utilities

Section 4.1.  Introduction

Section 4.2.  Filtering Files: grep, egrep, fgrep, and uniq

Section 4.3.  Sorting Files: sort

Section 4.4.  Comparing Files: cmp and diff

Section 4.5.  Finding Files: find

Section 4.6.  Archiving Files: cpio, tar, and dump/restore

Section 4.7.  Scheduling Commands: crontab and at

Section 4.8.  Programmable Text Processing: gawk

Section 4.9.  Hard and Soft Links: ln

Section 4.10.  Identifying Shells: whoami

Section 4.11.  Substituting a User: su

Section 4.12.  Transforming Files

Section 4.13.  Looking at Raw File Contents: od

Section 4.14.  Mounting File Systems: mount and umount

Section 4.15.  Identifying Terminals: tty

Section 4.16.  Timing Execution: time

Section 4.17.  Rolling Your Own Programs: Perl

Chapter Review