Use synonyms for the keyword you typed, for example, try "application" instead of "software.". Veritas does not guarantee the accuracy regarding the completeness of the translation. These Scripts areused for both full backups and incremental backups. The underscore character needs to appear in quotes, and the backslash is used before each of the quotes to escape those quotes (because the entire string appears within a set of double quotes). Then the contents of the log can be moved to another file, so that only the most recent error messages will be sent via e-mail. It might be better to rewrite the script in PL/SQL, Perl (which uses syntax similar to that used in shell scripting), Python, Java, or another language of your choice. To prevent extraneous messages from being returned, this script turns off the heading, feedback, and verify options of SQL*Plus. Shell scripting is not the solution for every problem. Again, various Linux utilities are available to monitor memory allocation. How to backup Oracle database via NetBackup for Oracle shell script. You can determine information about the flash recovery area ($recovery_file_dest) from this view, as well as by looking at some init.ora parameters (db_recovery_file_dest, db_recovery_file_dest_size). Environmental variables such as ORACLE_HOME, ORACLE_BASE, and ORACLE_SID can be used to locate resources that are not in a fixed location in the Linux environment. In this article, I will introduce functionality available through "bash" shell scripting that is relevant to installing, running, and maintaining Oracle databases on a Linux platform. SQL and Oracles fixed views provide a picture of the system from inside the database, whereas shell scripting provides a view of the system from outside of the database. Every system has distinct quirks and foibles and a unique configuration. In order to take the whole database backup we can use following script :-, - UNIX and Linux: hot_database_backup.sh- Windows: hot_database_backup.cmd. Once you have the record that indicates the inventory location, you want to remove the portion of the record prior to the equal sign. [root@dbclient1 bin]# ./oracle_linkWed Jun 18 04:52:26 EDT 2014All Oracle instances should be shutdown before running this script. It is possible that updates have been made to the original version after this document was translated and published. For instance, you could write a script to check the initial state of the OS and report any prerequisites that must be met before installation of the software. search_log.sh. You are searching for lines that contain the literal inventory_loc. The result of this command will look something like this: You can redirect standard out to a file, using the > redirection. To see a complete list in your environment, execute the following command and examine the resulting file (myenv.txt): Various combinations of these environmental variables can be used as the location of a file being searched. You can call Oracle Recovery Manager from a shell script and use it to perform a wide range of backup and recovery activities. The parameter pga_aggregate_target is used to configure memory for all dedicated server connections. If the file does not exist, it is created. Such a script could also monitor other processes and resources that are not Oracle-specific to provide a fuller picture of what is occurring in the system. The following example retrieves the currently logged-on user, by using whoami, and displays the date, by using the date command later in the script. After configuring the backup script, we need to create the Oracle backup policy via Netbackup Administration console and specify the required parameters. cat /etc/oraInst.loc |grep -v "#"|grep inventory_loc. When a schedule runs, NetBackup sets environment variables that the script uses to perform the backup. The first line in the script file can be used to dictate which shell will be used to run the script. Several different shells are available, including the C shell (csh), Korn shell (ksh), Bourne shell (sh), and Bourne-Again shell (bash). This command is what lets you iterate through all the arguments in the argument list (rather than remaining in an infinite loop). cat /etc/oraInst.loc|grep -v "#"|grep inventory_loc > tmp. ORACLE_USER=ora1024. Line 2 invokes Oracle Recovery Manager and specifies the OS user login to the target database (specified in the environmental variable $ORACLE_SID). About seven years ago, Oracle released the first commercial database on Linux. You want to remove entries that refer to the grep command itself, which is being run. A running Oracle database can be used to execute manual or scheduled tasks. If you do not have experience with UNIX or UNIX-like systems, the myriad of cryptic commands might be cause for concern. Log files are also generated when products are installed or deinstalled and when patches are applied. 
If the contents between the brackets evaluate to true, the commands that appear between if and fi will be executed. You need a mechanism for monitoring the state of a database (i.e. We must use the same case in backup policy.3. You can iterate through such a list by utilizing the following code snippet. You can log on as the database user and echo the $ORACLE_HOME variable. get_inv_location.sh. The stty echo command turns off the screen echo, so that the information entered for the subsequent read command will not appear on the screen. By breaking down the script into its component commands, you will get a better understanding of what is being accomplished. After the sensitive information has been read and stored in a variable ( pw in the example below), the display can be turned back on with stty echo. For example, a cold (cold.sh) backup might consist of the following script: Line 1 indicates that you are using the bash shell. Hello! The ps command can be used to report process status and to check to see if a database, listener, script, or any other process of interest is running. The next, grep, searches for SMON (the Oracle System Monitor background process), which indicates that the database is running. RMAN can be called by the underlying operating system and passed a script. Please log into the Unix system as the Oracle owner for running this script. The at command can be used to execute a script in the future, and cron can be used to schedule scripts to execute on a recurring basis. Based on the principles introduced in this script, a larger one can be written and scheduled to execute at periodic intervals that will search the contents of the alert log (or another file of interest) and send an e-mail if any errors exist. If the word count ( wc) is greater than ( -gt) zero, the contents of the if block will execute. A variety of logs are generated by Oracle products, and you might be interested in monitoring them. Many IT shops employ inpiduals who address concerns at the database as well as the operating system levels. Specify the full path name to the file that contains the script. If there is more than one inventory location due to multiple installs, you want to exclude lines commented out with a # . Note :-1. The query is executed and SQL*Plus is exited. Besides, in addition to being a relational database, Oracle 10g provides a robust platform for processing data within the database as well as several methods of interacting with the OS outside of the database. The <
In order to configure the script, We needfollowing environmental variables : 1. Note the double-backslash before the dollar sign in the view name. However, in practice, the distinction is not always clear. The NetBackup provides sample scriptsat following location:-, UNIX/Linux: /usr/openv/netbackup/ext/db_ext/oracle/samples/rmanWindows: install_path\NetBackup\dbext\oracle\samples\rman, There are severalscripts for different purpose. Scripts are either called as part of an automated process (with no human intervention) or run interactively, with a user responding to prompts. For an optimal experience on our website, please consider changing to Microsoft Edge, Firefox, Chrome or Safari. Apart from these variables we also need to specify the "Send Parameters" in the backup script. Linux utilities, including vmstat and top, can be used to monitor memory usage. if it is running and available to process queries). This greatly simplifies administration on multiple platforms, because all backup scripts can be written to be run by RMAN, reducing the amount of platform-specific code. The /etc/oratab file identifies databases (and other Oracle programs) installed on the server. Now we can try by executing the backup job. Database Installation. If the user enters anything other than y, that person is informed that the script is quitting and it exits without executing the remainder of the script following the end of the if block ( fi). By using a different test ( -d ), you can check to find out if a given entry is a directory (see is_a_directory.sh). You can determine the Oracle inventory by viewing the /etc/oraInst.loc file. The location and other attributes of the files associated with the database can be determined in this manner as well. The parameter parallel_threads_per_cpu sets an instances default degree of parallelism. The following one-liner prints out the ORACLE_HOME of an entry with an ORACLE_SID of TESTDB: cat /etc/oratab | awk -F: '{if ($1=="TESTDB") print $2 }'. We can also add & modify the parameters as per the environment requirements. When you run the fileor scriptit executes the commands contained in the file. The directory being used in an Oracle 10g installation for the flash recovery area. The init.ora parameters log_archive_dest_n also contain this information. Scripts written to interact with Oracle Database sometimes require the entry of sensitive information such as a database password. The $# variable contains the number of arguments in the script. For example:-, UNIX/Linux: /oracle/scripts/db_full_backup.shWindows: N:\oracle\scripts\db_full_backup.cmd. With the proper schedules, you can use this script to run a backup every week on Friday night and an incremental backup each night for the rest of the week automatically. You might run this utility to check for connection problems: Database exports and imports (traditional and data pump) are also good candidates for the scripting of repeating processes. As a result, some of the functionality on this website may not work for you. The status of processes (v$process) and memory (v$sga, v$sgastat, and so on) can be queried as well. There are various built-in PL/SQL packages as well as the ability to create Java and C database objects that allow for additional access to the underlying OS. In case of Unix Platform, send parameters values (i.e Master server name, Client name & Policy name) is case sensitive. Please provide additional feedback (optional): Please note that this document is a translation from English, and may have been machine-translated. Furthermore, many sysadmins and DBAs find it necessary or convenient to automate tasks related to their work. Database entries in this file are of the form. If you enclose a command within back-quote ( ) characters, the results of the command can be returned to the script. 
RMAN is then used to shut down the database, start up and mount the database, and proceed to back up the server parameter file and the contents of the database. Oracle Recovery Manager Scripts. As mentioned previously, if you are going to be writing something that requires extensive database access, shell scripting is not the best option. This example is a simple representative sequence of commands that can be used to read user input for various purposes. Note that this article is designed for Linux scripting beginners or DBAs who are relatively new to Linux; most experienced Linux sysadmins will not find it helpful. Before running a process that can result in data loss or other undesirable results under certain conditions that are not determinable from within the script, it is advisable to include a prompt asking if the user actually wants the script to execute the next command or commands. These include APPL_TOP, TWO_TASK, CONTEXT_NAME, and CONTEXT_FILE, to name a few. There is no particular reason to allow the temporary file (tmp) to remain, so it can be removed. What is being tested in this particular case is the first argument being passed to the script. You want to automate system setup that occurs prior to the installation of the Oracle software. 
You then print the second token of this string ( $2 ), which is everything to the right of the equal sign. Some files reside in a fixed location for a given Oracle install. is what actually performs the test. The following examples cover the essential aspects of providing output to view (using echo), looping, conditional logic, and variable assignment. The $0 variable contains the name of the script itself. Later in this article, there is a description of how to access the database by using SQL*Plus but in many cases, you are better off approaching the problem by using another language. Casimir Saternos is an Oracle Certified DBA, IBM Certified Enterprise Developer, and Sun Certified Java Programmer based in Allentown, Pa. Were sorry.
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