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What is thread safe or non-thread safe in PHP?
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Run a string as a command within a Bash script
I have a Bash script that builds a string to run as a command
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How to find the most recent file in a directory using .NET, and without looping?
I need to find the most recently modified file in a directory.
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How to make a HTTP request using Ruby on Rails?
I would like to take information from another website. Therefore (maybe) I should make a request to that website (in my case a HTTP GET request) and receive the response.
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ImageUtil 扩展：图像工具扩展，提供图像处理和变换功能 · App Inventor 2 中文网
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Vertical Text Direction
I have been trying text to go in a vertical direction like we can do in ms-word tables but so far I have only been able to do THIS ... which I am not happy with because it's a box rotated... Isn't there a way to have actual vertical direction text?
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What is the argument for printf that formats a long?
The printf function takes an argument type, such as %d or %i for a signed int . However, I don't see anything for a long value.
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How would you do a “not in” query with LINQ?
I have two collections which have property Email in both collections. I need to get a list of the items in the first list where Email does not exist in the second list. With SQL I would just use "not in", but I do not know the equivalent in LINQ. How is that done?
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How can i use iptables on centos 7? [closed]
I installed CentOS 7 with minimal configuration (os + dev tools). I am trying to open 80 port for httpd service, but something wrong with my iptables service ... what's wrong with it? What am I doing wrong?
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Automate ssh-keygen -t rsa so it does not ask for a passphrase
I need to automate ssh-keygen -t rsa with out a password i.e. enter at the prompt.
How can I do that from a shell script?
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