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Navigation bar appear over the views with new iOS7 SDK
...aque. Rather than doing this in code, simply untick "Translucent" for your root navigation bar:
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Which is better in python, del or delattr?
...
Premature optimization is the root of all evil. ;-) But yes, you are right, of course.
– Lennart Regebro
Jul 13 '09 at 18:24
26
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Stop node.js program from command line
... can kill it manually like this:
(NOTE: the following commands may require root, so sudo ... is your friend)
pkill -9 node
or, if you don't have pkill, this may work:
killall node
or perhaps this:
kill $(ps -e | grep node | awk '{print $1}')
sometimes the process will list its own grep, in which...
How to use “raise” keyword in Python [duplicate]
... exception chaining, it allows you to preserve the original exception (the root cause) with its traceback.
It's very similar to inner exceptions from C#.
More info:
https://www.python.org/dev/peps/pep-3134/
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xpath路径表达式笔记 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ng-instruction (处理命令节点)
- comment (注释节点)
- root (根节点)
xpath可以用来选择这7种节点。不过,下面的笔记只涉及最常用的第一种element(元素节点),因此可以将下文中的节点和元素视为同义词。
一、xpath表...
Linux下追踪程序退出(崩溃)思路 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...值。
注意:history只针对登录用户下执行有效,即使root用户也无法得到其它用户histotry历史。当然,还是有办法记录所有登陆用户的操作历史的:
在/etc/profile里面加入以下代码:
PS1="`whoami`@`hostname`:"'[$PWD]'
history
USER_IP=`wh...
vim 命令与快捷键 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...n1 to n2
:n1,n2s/old/new/c 询问
保存/退出
ZZ=:wq
:wq! owner root
:w dir/filename
:r filename 倒入文件内容
:r !date 倒入当前日期
:map ^p 0x<ESC>
^ 行首
:n1,n2s/^/#/g 添加行首#
:n1,n2s/^#//g 删除行首#
特殊字符转义\/\/\/
:ab a b 定义a =b
^p...
/proc 内核统计信息各文件的含义 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... task/
comm fd/ loginuid mounts oom_score root@ stack timers
含义如下:
2、系统级别统计:
# cd /proc; ls -Fd [a-z]*
acpi/ consoles execdomains irq/ kpagecount modules schedstat sys/ version
as...
Linux上安装dtrace(劝退篇) - 操作系统(内核) - 清泛网 - 专注IT技能提升
...要). 接着执行:
$ make all
$ make install
$ make load (need to be root or have sudo access)
至此大功告成, 有关dtrace的使用之后再总结吧. 希望对大家有所帮助.
附上一个手册: dtrace user guide
后记
折腾了半天, 发现dtrace对linux支持不是很好, 执...
Linux上安装dtrace(劝退篇) - 操作系统(内核) - 清泛网 - 专注IT技能提升
...要). 接着执行:
$ make all
$ make install
$ make load (need to be root or have sudo access)
至此大功告成, 有关dtrace的使用之后再总结吧. 希望对大家有所帮助.
附上一个手册: dtrace user guide
后记
折腾了半天, 发现dtrace对linux支持不是很好, 执...