Linux Recipes for Oracle DBAs by Darl Kuhn

By Darl Kuhn

This is often an exceptional Linux reference for an Oracle DBA.

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The less utility will display a : (colon) prompt at the bottom-left corner of the screen. fm Page 12 Tuesday, September 2, 2008 1:53 PM 12 CHAPTER 1 ■ 1-5. GETTING HELP the documentation line by line. Table 1-1 lists the less command options available to you while viewing man pages. Press the Q key to exit the man utility. Table 1-1. The less Command Options Available While Viewing man Pages Keystroke Action J, E, or down arrow Move down one line. K, Y, or up arrow Move up one line. Up arrow Move up one line.

Functions are more powerful because of features such as the ability to operate on parameters passed in on the command line. Functions are described in much more detail in Chapter 7. bashrc file. log } # valert2 #-----------------------------------------A common practice is to create a bin directory beneath the oracle account’s home directory and place the dba_fncs file in HOME/bin. fm Page 35 Tuesday, September 23, 2008 12:40 PM C HAPTE R 2 ■ 2-8. PROVIDING INPUT TO C OM MAN DS . $HOME/bin/dba_fcns Now every time you log on, the functions in the dba_fncs file are sourced and available for you to use as command shortcuts.

Solution One extremely nice feature of Linux is that there are several options for quickly obtaining more information regarding shell commands. Listed next are command-line help features that are readily available on most Linux systems: man: Read the online manual for a command. whatis: View a brief description of a command. which or whereis: Find a tool. --version: Display the version. --help: Show help. apropos: Display manual page documentation. info: List extensive documentation. Tab key: Show available commands.

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