UNIX編程環(huán)境（英文版）

CONTENTS1. UNIX for Beginners　
1.1　Getting started　
1.2　Day-to-day use: files and common commands　
1.3　More about files: directories　
1.4　The shell　
1.5　The rest of the UNIX system　2. The File System　
2.1　The basics of files　
2.2　What's in a file?　
2.3　Directories and filenames　
2.4　Permissions　
2.5　Inodes　
2.6　The directory hierarchy　
2.7　Devices　3. Using the Shell　
3.1　Command line structure　
3.2　Metacharacters　
3.3　Creating new commands　
3.4　Command arguments and parameters　
3.5　Program output as arguments　
3.6　Shell variables　
3.7　More on I/O redirection　
3.8　Looping in shell programs　
3.9　bundle: putting it all together　
3.10　Why a programmable shell?　4. Filters　
4.1　The grep family　
4.2　Other filters　
4.3　The stream editor sed　
4.4　The awk pattern scanning and processing language　
4.5　Good files and good filters　5. Shell Programming　
5.1　Customizing the cal command　
5.2　Which command is which?　
5.3　while and until loops: watching for things　
5.4　Traps: catching interrupts　
5.5　Replacing a file: overwrite　
5.6　zap: killing processes by name　
5.7　The pick command: blanks vs. arguments　
5.8　The news command: community service messages　
5.9　get and put: tracking file changes　
5.10　A look back　6. Programming with Standard I/O　
6.1　Standard input and output: vis　
6.2　Program arguments: vis version 2　
6.3　File access: vis version 3　
6.4　A screen-at-a-time printer: p　
6.5　An example: pick　
6.6　On bugs and debugging　
6.7　An example: zap　
6.8　An interactive file comparison program: idiff　
6.9　Accessing the environment　7. UNIX System Calls　
7.1　Low-level I/O　
7.2　File system: directories　
7.3　File system: inodes　
7.4　Processes　
7.5　Signals and interrupts　8. Program Development　
8.1　Stage 1: A four-function calculator　
8.2　Stage 2: Variables and error recovery　
8.3　Stage 3: Arbitrary variable names; built-in functions　
8.4　Stage 4: Compilation into a machine　
8.5　Stage 5: Control flow and relational operators　
8.6　Stage 6: Functions and procedures; input/output　
8.7　Performance evaluation　
8.8　A look back　9. Document Preparation　
9.1　The ms macro package　
9.2　The troff level　
9.3　The tbl and eqn preprocessors　
9.4　The manual page　
9.5　Other document preparation tools　10. Epilog　Appendix 1: Editor Summary　
Appendix 2: hoc Manual　
Appendix 3: hoc Listing　Index