I just updated to OS X Mountain Lion and I get the following when using rails and terminal.
WARNING: Nokogiri was built against LibXML version 2.8.0, but has dynamically loaded 2.7.8 I saw a
Category: OS
Operating System (Operating System, referred to as OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on the “bare metal”. Any other software must be supported by the operating system to run .
Operation and maintenance script
Reference link: https://github.com/SwordfallYeung/BigData_AutomaticDeploy
Automatic deployment: https://gitee.com/lucky110100/sloth/tree/master
Shell common analysis commands and script
Linux server View whether PHP supports mail () function method
PHP’s Mail function can be used to send emails. For example, check whether the Linux server PHP supports the Mail function?
How to check whether PHP supports the Mail function
There are
Linux Switch Memory Display Unit in the TOP command
The memory information at the top can be switched by pressing E when top is running, and the conversion rate is 1000 each time, but there is no unit. The switching unit is k, m, g, t, p:
2.
Jumping table Skiplist [data structure] principle and implementation
Why Jump Table Currently, the balanced data structures often used are: B-tree, red-black tree, AVL Tree, Splay Tree, Treep, etc.
Imagine giving you a piece of scratch paper, a pen, and an edi
HDU 5354 tree points
Given a tree with n nodes, the points have power
Find the number of point pairs (x,y)
where x!=y , the difference between the maximum value and the minimum value on the path from x to y
Tools: ITERM2 points record
Smart selection and copy
Use the Command key ingeniously
Hold down the ⌘ key:< /p> You can drag and drop the selected string; Click on the url: call the default browser to access the U
Leekcode solving record
There was a LeekCode competition last night. Five questions were solved in two and a half hours. After solving the first two questions easily, I got stuck on the third question. When there was half
GRUB application
GRUB application CentOS 6 boot process:
POST –> Boot Sequence(BIOS) –> Boot Loader (MBR) –> Kernel(ramdisk) –> rootfs –> switchroot –> /sbin/init –>(/etc/inittab, /etc/init/*.conf) –> set
String.getBytes () Chinese code problem
Get a byte array in the default encoding format of the operating system. This means that under different operating systems, the returned things are different!
byte[] a = “中”.getBytes()