Shell programming is the most important tool for unleashing the power of UNIX because the shell is the medium through which the user communicates with the operating system. This comprehensive title offers hundreds of shell programming tips and techniques.
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David Medinets's Unix Shell Programming Tools surveys the commands and code elements of the three scripting languages that are most commonly used in Unix: the Bash shell, Perl, and the Tool Command Language (Tcl). The book catalogs each of the different languages and uses short, descriptive code samples to demonstrate standard usage for most of the items discussed.
Medinets dedicates nearly half of the book to an ample discussion of the Bash shell and creates special chapters focused on the constituent elements of shell programming, including the creation of variables and procedures. While discussions on Perl and Tcl are separated into distinct chapters, each has fewer code samples to illustrate variations on code writing and usage. Instead, the author supplements the discussions on Perl and Tcl with dictionary-entry-style charts describing each language component by component.
Later chapters in the book examine debugging and pattern matching in all three languages and include a Unix command list. The accompanying CD-ROM includes shareware tools, utilities, and all of the code samples shown in the book. --Ryan KuykendallReview:
"...a superb book and demonstrates one of the best approaches to learning shell programming that I have read." -- Elizabeth Zinkann, SysAdmin Journal, October 1999
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