[Reprint] Linux how to search to find the file contents inside Linux inside how content search to find files

How to find files inside Linux Search content

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actually quite good learning linux

 

   Among the Linux system, how to search, file search to find content inside of it? This should be a system maintenance, management of them meet the most common needs. Here then, to sum up how to search, find content files among.

Search, find files which content is generally the most common grep command, in addition to egrep, vi commands can also search the contents of files inside

 

1: Search for a file which contains the string, use grep "search content" filename1, for example,

 

$ Grep ORA alert_gsp.log

$ grep "ORA" alert_gsp.log

 

For example, we need to search and look for character content utlspadv.sql file contains the ORA

[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]$ 

 

As shown above, this is a fuzzy match, I actually want to see the ORA such errors, some of which did not then I want to use, modify content search filter out what you can (of course, you can also use special parameters, followed by about ),As follows.

[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: If you want to search if a string contains multiple files, you can use the following way

 

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

grep "search content" *.sql

For example, I would like to see the current directory, which contains the script sql view v $ temp_space_header (Note: If you search for content that contains special characters must be escaped as shown below)

 

[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: If you need to search for text display the number of lines in the file, you can use the parameter -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: If you need to ignore case when searching for the problem, you can use the parameter -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]$ 

Further, for example, check the installation of the assembly MySQL

[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: Find the line does not match the specified string from the file contents:

 

$ Grep -v "search string" filename

For example, when looking for certain processes, we do not want to display a process that includes the command grep ora_mmon follows

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

Dit 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 | grip ora_mmon | grep -v grep

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

[oracle@DB-Server admin]$ 

 

6: search, find the number of matching rows:

 

$ Grep -c "search string" filename

[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: Some scenes, we do not know the file type, or those files containing the search string we need to, you can recursively search a directory of all the files and subdirectories

 

[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。

 

 

参考资料：

http://www.cyberciti.biz/faq/howto-search-find-file-for-text-string/

 

   在Linux系统当中，如何搜、索查找文件里面的内容呢？ 这个应该是系统维护、管理当中遇到最常见的需求。那么下面介绍，总结一下如何搜索、查找文件当中的内容。

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 command can actually search the contents of files inside, but there is no grep command function so convenient, powerful.

 

 

References:

http://www.cyberciti.biz/faq/howto-search-find-file-for-text-string/