sendmail问题Cannot open /usr/share/sendmail-cf/m4/cf.m4
我的是
yum install sendmai*
Post by ihyygt on 2010, March 18, 5:05 PM
如果发现多次报错均可略过的话,可以设置一下 --slave-skip-errors ,直接略过多种错误代码
或
set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
Post by admin on 2009, May 7, 10:51 AM
终于解决了大盘指数的问题,爽
Post by admin on 2009, March 25, 12:24 AM
x86_64 无gd,freetype...
Post by admin on 2009, March 20, 4:05 PM
CentOS release 5.2 (Final)
Intel(R) Xeon(R) CPU E5405 @ 2.00GHz 2*4 ram 8G sas 146G*3 raid0
Concurrency Level: 300
Time taken for tests: 2.914006 seconds
Complete requests: 10000
Failed requests: 137
(Connect: 0, Length: 137, Exceptions: 0)
Write errors: 0
Total transferred: 422204614 bytes
HTML transferred: 420793627 bytes
Requests per second: 3431.70 [#/sec] (mean)
Time per request: 87.420 [ms] (mean)
Time per request: 0.291 [ms] (mean, across all concurrent requests)
Transfer rate: 141492.16 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 2.9 0 23
Processing: 1 38 158.1 16 2241
Waiting: 0 32 157.8 11 2238
Total: 1 38 158.1 17 2241
Percentage of the requests served within a certain time (ms)
50% 17
66% 24
75% 28
80% 32
90% 46
95% 72
98% 194
99% 545
100% 2241 (longest request)
Post by admin on 2009, March 20, 4:04 PM
err
checking for termcap functions library... configure: error: No curses/termcap library found
++
--with-named-curses-libs=/usr/lib/libncursesw.so.5
Post by admin on 2009, March 20, 2:15 PM
仓库中版本的备份及还原形式主要有两种:
方式一:直接备份仓库整个文件夹(全部版本),重装svn程序后直接还原过去。
方式二:通过svn命令行备份和还原指定版本号的数据
全备份:使用svnadmin hotcopy或svnsync来做,例:
svnadmin hotcopy path/to/repository path/to/backup --clean-logs
增量备份:使用svnadmin dump的--incremental选项来实现
svnadmin dump 版本库路径及名称 --revision 上次导出的版本号:到本次要导出到的版本号 --incremental > 导出的命名
还原版本:svnadmin load 要恢复的版本库路径及名称 < 导出的命名
svnadmin hotcopy path/to/repository path/to/backup --clean-logs
一个技巧:
如果你有一个较大的Subsersion版本库而你又想用最少的空间来将它备份下来,用这个命令(请将/repo替换成你的版本库路径)吧:
svnadmin dump --deltas /repo |bzip2 |tee dump.bz2 | md5sum >dump.md5
分步解释:
最重要的一步是 -deltas,将消耗更多的CPU资源,但拥有更有效的差异存储办法。
bzip2压缩方案比gzip慢,但换来的更好的压缩率。
更有趣的是,tee方法将压缩的数据流转向到文件dump.bz2,同时将其输出到标准输出,后者有转向给了MD5摘要计算工具。
要恢复这个版本库,检查校验值(md5sum创建的),创建一个空的版本库,恢复备份:
md5sum -c dump.md5 <dump.bz2
svnadmin create newrepo
bzcat dump.bz2 | svnadmin load newrepo
请享受压缩后用MD5校验的备份吧,最后别忘记将dump.md5和dump.bz2存储到真正安全的地方!
Post by admin on 2009, March 16, 10:37 AM
mysqlcheck -B name -r -uroot -p
Post by admin on 2008, December 29, 9:41 AM
linux启动提示:contains a file system with errors, check forced.的解决方(转)
谢谢楼主,我这问题解决了。
顶!~
Post by ningzhang on 2008, August 28, 2:43 PM
lovo....co...uk
Post by admin on 2008, August 20, 3:15 PM
正则表达式的特殊字符包括:. \\ + * ? [ ^ ] $ ( ) { } = ! < > | :。
Post by admin on 2008, August 20, 1:45 PM
preg_quote -- 转义正则表达式字符
Post by admin on 2008, August 20, 1:44 PM
ereg: 字符串比对解析。
ereg_replace: 字符串比对解析并取代。
eregi: 字符串比对解析,与大小写无关。
eregi_replace: 字符串比对解析并取代,与大小写无关。
split: 将字符串依指定的规则切开。
sql_regcase: 将字符串逐字返回大小写字符。
Post by admin on 2008, August 20, 1:40 PM
1)空字符:
换行\n
回车\r
制表符\t
Post by admin on 2008, August 20, 12:43 PM
i 大小写不敏感
s .也匹配换行符,本来它是匹配所有除换行符外的所有字符的
U 非贪婪模式,简单的讲,就是找到最近的一个
Post by admin on 2008, August 18, 8:05 PM
sed -i 's#<script src=http://www.xx/a.js></script><script src=http://www.xx/a.js></script>##' `find . -name "*.html"`
Post by admin on 2008, August 14, 10:05 AM
sed -i 's/?13936/d447-2514-13936.html/' find
Post by admin on 2008, July 29, 11:33 AM