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xxx.sh: line x: [0: command not found - 脚本技术 - 清泛IT社区，为创新赋能！
由于if [ 后面没有加空格导致的。
if [ xxx ] 表达式前后都要有空格。
nvarchar和varchar相互转换、联合查询 - ORACLE - 清泛IT论坛，有思想、有深度
...ational character set. The output datatype is NVARCHAR2.
（A表字段c_xxx:varchar，B表c_xxx:nvarchar）
select translate(c_xxx USING NCHAR_CS) from A
union all
select c_xxx from B
或者
select c_xxx from A
union all
select translate(c_xxx USING CHAR_CS) from B
注意：translat...
编译错误 error: ISO C++ forbids declaration of ‘xxx’ with no type [-...
编译错误 error: ISO C++ forbids declaration of ‘xxx’ with no type [-fpermissive]error-iso-c-forbids-declaration-of-with-no-type比较可能的情况1：函数没有写返回类型，加上返回类型后编译成功。 ifndef ttTree_h define ttTree_hclass ttTree {public: ttTree(void); int ...
WinDbg .reload /i xxx.dll 强制加载pdb，lm 查看模块 - 微思想区 - 清泛IT...
WinDbg
.reload /i xxx.dll 强制加载pdb，lm 查看模块
How to force cp to overwrite without confirmation
...
You can do yes | cp -rf xxx yyy, but my gutfeeling says that if you do it as root - your .bashrc or .profile has an alias of cp to cp -i, most modern systems (primarily RH-derivatives) do that to root profiles.
You can check existing aliases by ru...
Logback to log different messages to two files
...;/pattern>
</encoder>
</appender>
<logger name="com.xxx.yyy.zzz" level="INFO" additivity="true">
<appender-ref ref="xyz"/>
</logger>
<logger name="com.aaa.bbb.ccc" level="INFO" additivity="true">
<appender-ref ref="abc"/>
</logger>
&l...
Is floating point math broken?
...0) numbers have the same issues, which is why numbers like 1/3 end up as 0.333333333...
You've just stumbled on a number (3/10) that happens to be easy to represent with the decimal system, but doesn't fit the binary system. It goes both ways (to some small degree) as well: 1/16 is an ugly number ...
How to stop mysqld
...s
sudo launchctl list | grep -i mysql
If the result shows anything like: "xxx.xxx.mysqlxxx"
sudo launchctl remove xxx.xxx.mysqlxxx
Example:
sudo launchctl remove org.macports.mysql56-server
b) Disable to autostart the process
sudo launchctl unload -wF /Library/LaunchDaemons/xxx.xxx.mysqlxxx.plis...
How to specify a port number in SQL Server connection string?
...
Use a comma to specify a port number with SQL Server:
mycomputer.test.xxx.com,1234
It's not necessary to specify an instance name when specifying the port.
Lots more examples at http://www.connectionstrings.com/. It's saved me a few times.
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gitignore all files of extension in directory
...
what's the difference between xxx/** and xxx/?
– thuzhf
May 24 '16 at 11:53
10
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