Linux下通過script命令記錄數(shù)據(jù)庫(kù)操作教程

　　對(duì)DBA而言，經(jīng)常碰到升級(jí)數(shù)據(jù)庫(kù)或是apply patch，以及有些時(shí)候需要運(yùn)行大量的腳本。對(duì)于這些操作我們希望現(xiàn)在在屏幕同時(shí)又輸出的文件以備后續(xù)查詢過程中曾經(jīng)丟失的步驟或錯(cuò)誤。接下來是小編為大家收集的Linux下通過script 命令記錄數(shù)據(jù)庫(kù)操作教程，希望能幫到大家。

　　Linux下通過script 命令記錄數(shù)據(jù)庫(kù)操作教程

　　1、script命令描述

　　復(fù)制代碼

　　代碼如下:

　　script命令會(huì)記錄所有的操作到文件同時(shí)在屏幕上輸出，直到終止登陸的會(huì)話，或使用CRTL+D，或使用exit退出則停止記錄。

　　這個(gè)命令對(duì)于數(shù)據(jù)庫(kù)的升級(jí)或是重要設(shè)置的情形下使用可以用于后續(xù)查詢操作成功或失敗。

　　用法: $ script [upgrade.log]

　　如果未指定日志文件名的情形，自動(dòng)生成日志文件名為typescript。

　　如果需要輸出到已經(jīng)存在的日志文件，則使用 -a 參數(shù)，再接已經(jīng)存在日志文件名。

　　如果需要在輸出到日志文件的同時(shí)，也可以查看日志文件的內(nèi)容，可以使用 -f 參數(shù)。

< p># script 幫助描述

　　robin@SZDB:~> man script

　　NAME

　　script - make typescript of terminal session

< p>SYNOPSIS

　　script [-a] [-c COMMAND] [-f] [-q] [-t] [file]

< p>DESCRIPTION

　　Script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of

　　an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1).

< p> If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the

　　file typescript.

< p> Options: < p> -a Append the output to file or typescript, retaining the prior contents. < p> -c COMMAND

　　Run the COMMAND rather than an interactive shell. This makes it easy for a script to capture the output of a pro-

　　gram that behaves differently when its stdout is not a tty.

< p> -f Flush output after each write. This is nice for telecooperation: One person does `mkfifo foo; script -f foo' and

　　another can supervise real-time what is being done using `cat foo'.

< p> -q Be quiet. < p> -t Output timeing data to standard error. This data contains two fields, separated by a space. The first field indi-

　　cates how much time elapsed since the previous output. The second field indicates how many characters were output

　　this time. This information can be used to replay typescripts with realistic typing and output delays.

　　2、script命令用法示例

　　復(fù)制代碼

　　代碼如下:

　　a、script命令后接日志文件名

　　robin@SZDB:~> script test_logfile.log #啟用script

　　Script started, file is test_logfile.log

< p> .................#中間操作省略

　　robin@SZDB:~> exit #停止script

　　exit

　　Script done, file is test_logfile.log

< p>#查看剛剛生成的日志文件

　　robin@SZDB:~> more test_logfile.log

　　Script started on Fri 26 Apr 2013 05:45:23 PM CST

　　robin@SZDB:~> sid

　　bash: sid: command not found

　　robin@SZDB:~> . ~/.bash_profile

　　robin@SZDB:~> sid

　　ORA_CRS_HOME=/opt/oracle/product/10gR2/crs

　　ORACLE_PATH=.:/users/robin/dba_scripts/custom/sql

　　ORA_ASM_HOME=/opt/oracle/product/10gR2/asm

　　ORACLE_SID=SYBO2SZ

　　ORACLE_BASE=/users/oracle

　　ORACLE_HOME=/users/oracle/OraHome10g

　　robin@SZDB:~> sql

< p>SQL*Plus: Release 10.2.0.3.0 - Production on Fri Apr 26 17:46:12 2013 < p>Copyright (c) 1982, 2006, Oracle. All Rights Reserved. < p>Error accessing PRODUCT_USER_PROFILE

　　Warning: Product user profile information not loaded!

　　You may need to run PUPBLD.SQL as SYSTEM

< p>Connected to:

　　Oracle Database 10g Release 10.2.0.3.0 - 64bit Production

< p>goex_admin@SYBO2SZ> alter session set current_schema=scott; < p>Session altered. < p>goex_admin@SYBO2SZ> select * from dept; < p> DEPTNO DNAME LOC

　　---------- -------------- -------------

　　10 ACCOUNTING NEW YORK

　　20 RESEARCH DALLAS

　　30 SALES CHICAGO

　　40 OPERATIONS BOSTON

< p>goex_admin@SYBO2SZ> exit

　　Disconnected from Oracle Database 10g Release 10.2.0.3.0 - 64bit Production

　　robin@SZDB:~> exit

　　exit

< p>Script done on Fri 26 Apr 2013 05:46:32 PM CST < p>b、script 命下直接跟腳本名的示例

　　robin@SZDB:~> script -c retval.sh

　　Script started, file is typescript

　　7788 SCOTT ANALYST 7566 19870419 00:00:00 3100 20

　　Script done, file is typescript

< p>#被執(zhí)行的shell腳本的內(nèi)容

　　# Author : Robinson

　　# Blog : http://blog.csdn.ner/robinson_0612

< p>robin@SZDB:~> more ~/dba_scripts/custom/bin/retval.sh

　　#!/bin/bash

　　RETVAL=`sqlplus -silent scott/tiger <

　　SET PAGESIZE 0 FEEDBACK OFF VERIFY OFF HEADING OFF ECHO OFF

　　SELECT * FROM emp WHERE ename='SCOTT';

　　EXIT;

　　EOF`

　　if [ -z "$RETVAL" ]; then

　　echo "No rows returned from database"

　　exit 0

　　else

　　echo $RETVAL

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