linux命令ora 创建文件夹Linux命令

linux怎么进入oracle命令?

su – oracle 不是必需,适合于没有DBA密码时使用,可以不用密码来进入sqlplus界面。

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sqlplus /nolog 或sqlplus system/manager 或./sqlplus system/manager@ora9i。

root用户登录linux桌面右击open terminal# su - oracle$ sqlplus /nologSQL conn / as sysdbaSQLstartupSQLselect sysdate from dual;之后你就可以使用oracle了。

对于PC市场来说windows操作系统是封闭式的系统.源代码是机密.占据了绝大部分市场.一般装机和品牌机都是默认安装windows.大家对windows更熟悉.linux是操作系统是开放式的系统.源代码是公开的。

linux查找文件内容命令

搜索、查找文件当中的内容,一般最常用的是grep命令,另外还有egrep, vi命令也能搜索文件里面内容

1:搜索某个文件里面是否包含字符串,使用grep "search content" filename1, 例如

$ grep ORA alert_gsp.log

$ grep "ORA" alert_gsp.log

例如我们需要搜索、查找utlspadv.sql文件中包含ORA的字符内容

[oracle@DB-Server admin]$ grep "ORA" utlspadv.sql

--   ORA-XXXXX:        Monitoring already started. If for example you want

--   ORA-20111:

--   ORA-20112:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

-- 0 |PS =DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM 0 0 2 99.3% 0% 0.7% ""

-- |PR DBS1.REGRESS.RDBMS.DEV.US.ORACLE.COM= 100% 0% 0% "" |PR ...

-- =DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM 92 7 99.3% 0% 0.7% "" |PR ...

-- |C CAPTURE_USER1=DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM 2 0 0 0.E+00

-- |C CAPTURE_USER1=DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM

-- ORA-20111:

-- ORA-20112:

--   ORA-20100:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

[oracle@DB-Server admin]$

如上所示,这个是一个模糊匹配,其实我是想要查看ORA这类错误,那么我要过滤掉哪一些没有用的,搜索的内容修改一下即可(当然也可以使用特殊参数,后面有讲述),如下所示。

[oracle@DB-Server admin]$ grep "ORA-" utlspadv.sql

--   ORA-XXXXX:        Monitoring already started. If for example you want

--   ORA-20111:

--   ORA-20112:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

-- ORA-20111:

-- ORA-20112:

--   ORA-20100:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

[oracle@DB-Server admin]$

2: 如果你想搜索多个文件是否包含某个字符串,可以使用下面方式

grep "search content" filename1 filename2.... filenamen

grep "search content" *.sql

例如我想查看当前目录下,哪些sql脚本包含视图v$temp_space_header(注意:搜索的内容如果包含特殊字符时,必须进行转义处理,如下所示)

[oracle@DB-Server admin]$ grep "v\$temp_space_header" *.sql

catspacd.sql:drop public synonym v$temp_space_header;

catspacd.sql:drop public synonym gv$temp_space_header;

catspace.sql:create or replace view v_$temp_space_header as select * from v$temp_space_header;

catspace.sql:create or replace public synonym v$temp_space_header for v_$temp_space_header;

catspace.sql:create or replace view gv_$temp_space_header as select * from gv$temp_space_header;

catspace.sql:create or replace public synonym gv$temp_space_header

catspace.sql:            FROM gv$temp_space_header

[oracle@DB-Server admin]$

3:如果需要显示搜索文本在文件中的行数,可以使用参数-n

[oracle@DB-Server admin]$ grep  -n "v\$temp_space_header" *.sql

catspacd.sql:68:drop public synonym v$temp_space_header;

catspacd.sql:71:drop public synonym gv$temp_space_header;

catspace.sql:1952:create or replace view v_$temp_space_header as select * from v$temp_space_header;

catspace.sql:1953:create or replace public synonym v$temp_space_header for v_$temp_space_header;

catspace.sql:1956:create or replace view gv_$temp_space_header as select * from gv$temp_space_header;

catspace.sql:1957:create or replace public synonym gv$temp_space_header

catspace.sql:2357:            FROM gv$temp_space_header

[oracle@DB-Server admin]$

4: 如果搜索时需要忽略大小写问题,可以使用参数-i

[oracle@DB-Server admin]$ grep  "V\$TEMP_SPACE_HEADER" *.sql

[oracle@DB-Server admin]$ grep -i "V\$TEMP_SPACE_HEADER"  *.sql

catspacd.sql:drop public synonym v$temp_space_header;

catspacd.sql:drop public synonym gv$temp_space_header;

catspace.sql:create or replace view v_$temp_space_header as select * from v$temp_space_header;

catspace.sql:create or replace public synonym v$temp_space_header for v_$temp_space_header;

catspace.sql:create or replace view gv_$temp_space_header as select * from gv$temp_space_header;

catspace.sql:create or replace public synonym gv$temp_space_header

catspace.sql:            FROM gv$temp_space_header

[oracle@DB-Server admin]$

另外,例如检查安装的MySQL组件

[root@DB-Server init.d]# rpm -qa | grep -i mysql

MySQL-devel-5.6.23-1.linux_glibc2.5

MySQL-client-5.6.23-1.linux_glibc2.5

MySQL-server-5.6.23-1.linux_glibc2.5

5:从文件内容查找不匹配指定字符串的行:

$ grep –v "被查找的字符串" 文件名

例如查找某些进程时,我们不想显示包含命令grep ora_mmon的进程,如下所示

[oracle@DB-Server admin]$ ps -ef  | grep ora_mmon 

oracle   16675 16220  0 00:09 pts/1    00:00:00 grep ora_mmon

oracle   21412     1  0 Aug22 ?        00:00:07 ora_mmon_gsp

[oracle@DB-Server admin]$ ps -ef  | grep ora_mmon  | grep -v grep

oracle   21412     1  0 Aug22 ?        00:00:07 ora_mmon_gsp

[oracle@DB-Server admin]$

6:搜索、查找匹配的行数:

$ grep -c "被查找的字符串" 文件名

[oracle@DB-Server admin]$

[oracle@DB-Server admin]$ grep   "v\$temp_space_header" *.sql

catspacd.sql:drop public synonym v$temp_space_header;

catspacd.sql:drop public synonym gv$temp_space_header;

catspace.sql:create or replace view v_$temp_space_header as select * from v$temp_space_header;

catspace.sql:create or replace public synonym v$temp_space_header for v_$temp_space_header;

catspace.sql:create or replace view gv_$temp_space_header as select * from gv$temp_space_header;

catspace.sql:create or replace public synonym gv$temp_space_header

catspace.sql:            FROM gv$temp_space_header

[oracle@DB-Server admin]$ grep -c  "v\$temp_space_header"  catspacd.sql

2

[oracle@DB-Server admin]$ grep -c  "v\$temp_space_header"  catspace.sql

5

[oracle@DB-Server admin]$

7:有些场景,我们并不知道文件类型、或那些文件包含有我们需要搜索的字符串,那么可以递归搜索某个目录以及子目录下的所有文件

[oracle@DB-Server ~]$ grep -r "v\$temp_space_header" /u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql:create or replace view v_$temp_space_header as select * from v$temp_space_header;

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql:create or replace public synonym v$temp_space_header for v_$temp_space_header;

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql:create or replace view gv_$temp_space_header as select * from gv$temp_space_header;

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql:create or replace public synonym gv$temp_space_header

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql: FROM gv$temp_space_header

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspacd.sql:drop public synonym v$temp_space_header;

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspacd.sql:drop public synonym gv$temp_space_header;

[oracle@DB-Server ~]$

8:如果我们只想获取那些文件包含搜索的内容,那么可以使用下命令

[oracle@DB-Server ~]$ grep -H -r "v\$temp_space_header" /u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/ | cut -d: -f1

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspacd.sql

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspacd.sql

[oracle@DB-Server ~]$ grep -H -r "v\$temp_space_header" /u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/ | cut -d: -f1 | uniq

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspace.sql

/u01/app/oracle/product/11.1.0/dbhome_1/rdbms/admin/catspacd.sql

[oracle@DB-Server ~]$

9:如果只想获取和整个搜索字符匹配的内容,那么可以使用参数w

你可以对比一下两者的区别

[oracle@DB-Server admin]$ grep -w "ORA" utlspadv.sql

--   ORA-XXXXX:        Monitoring already started. If for example you want

--   ORA-20111:

--   ORA-20112:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

-- ORA-20111:

-- ORA-20112:

--   ORA-20100:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

[oracle@DB-Server admin]$ grep  "ORA" utlspadv.sql

--   ORA-XXXXX:        Monitoring already started. If for example you want

--   ORA-20111:

--   ORA-20112:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

-- 0 |PS =DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM 0 0 2 99.3% 0% 0.7% ""

-- |PR DBS1.REGRESS.RDBMS.DEV.US.ORACLE.COM= 100% 0% 0% "" |PR ...

-- =DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM 92 7 99.3% 0% 0.7% "" |PR ...

-- |C CAPTURE_USER1=DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM 2 0 0 0.E+00

-- |C CAPTURE_USER1=DBS2.REGRESS.RDBMS.DEV.US.ORACLE.COM

-- ORA-20111:

-- ORA-20112:

--   ORA-20100:

--   ORA-20113: 'no active monitoring job found'

--   ORA-20113: 'no active monitoring job found'

[oracle@DB-Server admin]$

10: grep命令结合find命令搜索

[oracle@DB-Server admin]$ find . -name '*.sql' -exec grep -i 'v\$temp_space_header' {} \; -print

create or replace view v_$temp_space_header as select * from v$temp_space_header;

create or replace public synonym v$temp_space_header for v_$temp_space_header;

create or replace view gv_$temp_space_header as select * from gv$temp_space_header;

create or replace public synonym gv$temp_space_header

FROM gv$temp_space_header

./catspace.sql

drop public synonym v$temp_space_header;

drop public synonym gv$temp_space_header;

./catspacd.sql

[oracle@DB-Server admin]$

11: egrep -w -R 'word1|word2' ~/klbtmp

12: vi命令其实也能搜索文件里面的内容,只不过没有grep命令功能那么方便、强大。

linux操作系统下,如何启动oracle服务与监听命令?

1、切换到oracle用户\x0d\x0asu - oracle\x0d\x0a2、startdb.sh命令脚本\x0d\x0a#!/bin/sh\x0d\x0alsnrctl start\x0d\x0asqlplus "/as sysdba"

回答于 2022-11-16

ps -ef | grep ora中的ora是什么意思,最好解释详细点

ps -ef是以全格式显示当前所有的进程

ps是Linux 操作系统中的一个命令,用来查看系统进程的

ora应该看oracle的后台进程 可以查看oracle 是否启动

oram8n 6492 1 0 Feb 4 ? 26:51 ora_cjq0_sxm8

oram8n 6507 1 0 Feb 4 ? 1:11 ora_arc1_sxm8

oram8n 6482 1 0 Feb 4 ? 9:04 ora_dbw0_sxm8

oram8n 6581 1 0 Feb 4 ? 0:14 ora_q001_sxm8

第一个是用户名,第二个是进程号,还有那个feb的是时间二月,最后是oracle的后台进程


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