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How do you validate a URL with a regular expression in Python?
...f they're displeasing in some way.
Do you want the scheme to always be "http"? Do you want the netloc to always be "www.somename.somedomain"? Do you want the path to look unix-like? Or windows-like? Do you want to remove the query string? Or preserve it?
These are not RFC-specified validati...
PostgreSQL “DESCRIBE TABLE”
How do you perform the equivalent of Oracle's DESCRIBE TABLE in PostgreSQL (using the psql command)?
22 Answers
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How to drop columns using Rails migration
...changes at once.
Here's the full list of supported change_table methods:
http://apidock.com/rails/ActiveRecord/ConnectionAdapters/SchemaStatements/change_table
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OpenSSH升级后不能登录的问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...openssh上面 于是打算升级
升级过程很顺利
具体情况这里http://pkgs.org/centos-6/ghettoforge-testing-x86_64/openssh-6.6.1p1-4.gf.el6.x86_64.rpm.html
备份原有源
cd /etc/yum.repos.d/
mv rhel-source.repo rhel-source.repo.bak
mv packagekit-media.repo packagekit-media.repo.bak...
How do I list the symbols in a .so file
How do I list the symbols being exported from a .so file? If possible, I'd also like to know their source (e.g. if they are pulled in from a static library).
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Best way to list files in Java, sorted by Date Modified?
I want to get a list of files in a directory, but I want to sort it such that the oldest files are first. My solution was to call File.listFiles and just resort the list based on File.lastModified, but I was wondering if there was a better way.
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T-SQL: Selecting rows to delete via joins
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Find index of last occurrence of a sub-string using T-SQL
Is there 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 ...
Why doesn't JavaScript support multithreading?
...n the extra possibilities.
For the future of JavaScript, check this out:
https://developer.mozilla.org/presentations/xtech2006/javascript/
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Why is the Windows cmd.exe limited to 80 characters wide?
... it from the disk image at the official website (freedos.org) or get it at http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/dos/mode/2005/.
New FreeDOS MODE by Eric Auer 2003-2005. License: GPL. (version 12may2005)
MODE [device] [/STA[TUS]] (show status of one or all devices...