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REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...的IP地址
这个时候系统的网卡默认是没有启动的
输入 ifup eth0 启用网卡 ifconfig
Redhat 初步安装完成。
1.2辅助工具
切换到windows 下准备号SSH工具我的是SecureCRT
输入正确的密码后，链接到服务器。
检查下内存 管方要...
How to delete every other line in Vim?
...r, starting with the second one, i.e., lines 2, 4, 6, etc. For example, if the buffer’s contents is:
12 Answers
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How do I kill all the processes in Mysql “show processlist”?
...T");
while ($row=mysql_fetch_array($result)) {
$process_id=$row["Id"];
if ($row["Time"] > 200 ) {
$sql="KILL $process_id";
mysql_query($sql);
}
}
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Calculating text width
...on the third line after '</span>', though it doesn't seem to make a difference (worked with or without it on FF9).
– shmeeps
Jan 12 '12 at 18:33
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What are good uses for Python3's “Function Annotations”
... tool that organizes methods in a large class based on tags can be written if there is an official syntax.
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Why is there no logical xor in JavaScript?
...ul, but in all my years of programming I have never needed a logical XOR.
If you have two boolean variables you can mimic XOR with:
if (a != b)
With two arbitrary variables you could use ! to coerce them to boolean values and then use the same trick:
if (!a != !b)
That's pretty obscure though...
What is the purpose of “!” and “?” at the end of method names?
...e#sort! sorts it in place.
In Rails, ActiveRecord::Base#save returns false if saving failed, while ActiveRecord::Base#save! raises an exception.
Kernel::exit causes a script to exit, while Kernel::exit! does so immediately, bypassing any exit handlers.
Methods ending in ? return a boolean, which ma...
Git alias with positional parameters
... obvious way is to use a shell function:
[alias]
files = "!f() { git diff --name-status \"$1^\" \"$1\"; }; f"
An alias without ! is treated as a Git command; e.g. commit-all = commit -a.
With the !, it's run as its own command in the shell, letting you use stronger magic like this.
UPD
Bec...
Which characters need to be escaped when using Bash?
... 67 - g
Where first field is hexa value of byte, second contain E if character need to be escaped and third field show escaped presentation of character.
Why ,?
You could see some characters that don't always need to be escaped, like ,, } and {.
So not always but sometime:
echo test 1, 2, 3...
Two submit buttons in one form
...
If you give each one a name, the clicked one will be sent through as any other input.
<input type="submit" name="button_1" value="Click me">
...