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Accessing last x characters of a string in Bash
I found out that with ${string:0:3} one can access the first 3 characters of a string. Is there a equivalently easy method to access the last three characters?
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从一个开发的角度看负载均衡和LVS - 更多技术 - 清泛网 - 专注C/C++及内核技术
...P/UDP，LVS支持TCP/UDP的负载均衡。
LVS的转发主要通过修改IP地址（NAT模式，分为源地址修改SNAT和目标地址修改DNAT）、修改目标MAC（DR模式）来实现。
那么为什么LVS是在第四层做负载均衡？
首先LVS不像HAProxy等七层软负载面...
Accessing localhost (xampp) from another computer over LAN network - how to?
... listening. netstat -a , look for items on port 80, it will tell you which IP(s) its listening on
– BugFinder
Apr 2 '11 at 15:52
2
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How to get a list of all valid IP addresses in a local network? [closed]
Is there a way to get a list of all valid IP addresses in a local network?
3 Answers
3...
How to negate specific word in regex? [duplicate]
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Nicely done - matches a line that has the specified string and the string is not preceded by anything and the string is followed by anything.This is by definition the absence of the string! because if present it will always be preceded by something even if its a line anchor ^
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Find index of last occurrence of a sub-string using T-SQL
...ere a straightforward way of finding the index of the last occurrence of a string using SQL? I am using SQL Server 2000 right now. I basically need the functionality that the .NET System.String.LastIndexOf method provides. A little googling revealed this - Function To Retrieve Last Index - bu...
Interpolating a string into a regex
I need to substitute the value of a string into my regular expression in Ruby. Is there an easy way to do this? For example:
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Return positions of a regex match() in Javascript?
Is there a way to retrieve the (starting) character positions inside a string of the results of a regex match() in Javascript?
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How can I use a DLL file from Python?
...s and call the Python name with them.
p1 = ctypes.c_int (1)
p2 = ctypes.c_char_p (sessionVar)
p3 = ctypes.c_int (1)
p4 = ctypes.c_int (0)
hllApi (ctypes.byref (p1), p2, ctypes.byref (p3), ctypes.byref (p4))
The ctypes stuff has all the C-type data types (int, char, short, void*, and so on) and ca...
Virtualbox “port forward” from Guest to Host [closed]
...twork communication Host -> Guest
Connect to the Guest and find out the ip address:
ifconfig
example of result (ip address is 10.0.2.15):
eth0 Link encap:Ethernet HWaddr 08:00:27:AE:36:99
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
Go to Vbox instance window ->...