Every modern operating system has at least one shell and some have many. Some shells are command-line oriented, such as the shell discussed in this book. Others are graphical, like Windows Explorer or the Macintosh Finder. Some users will interact with the shell only long enough to launch their favorite application, and then never emerge from...

Why did I...

In UNIX there are many ways to accomplish the same task. Given a problem to solve, we may be able to get to a solution in any number of ways. Of course, some techniques will be more efficient, use fewer system resources, and may or may not give the user feedback on what is going on or give more accurate details and more precision to the...

When it’s all said and done, penetration testing remains the most effective way to identify security vulnerabilities in computer networks. Conducting Network Penetration and Espionage in a Global Environment provides detailed guidance on how to perform effective penetration testing of computer networks―using free, open...

• Learn UNIX shell programming the easy way, using hands-on examples

• Covers all five leading UNIX shells-C, Bourne, Korn, bash, and tcsh

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Authors Michael Turner and Steve Shah deliver sound instruction and valuable information in this structured learning tool. Valuable to systems and network administrators migrating from Windows to Linux, it is also perfect for novice users. Coverage includes all areas of administering the open-source operating...

The job of Linux systems administrator is interrupt-driven and requires constant learning in byte-wise chunks. This book gives solutions to modern problems, even some you might not have heard of, such as scripting LDAP, making Mac clients play nice with Linux servers, and backup, security, and recovery scripts. Author Juliet Kemp takes a broad...

You'll find complete coverage of Linux...