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How to make a node.js application run permanently?
...nd. To avoid this behavior run the server in the background by appending & to your command:
node /srv/www/MyUserAccount/server/server.js &
The problem here is a lack of linux knowledge and not a question about node. For some more info check out: http://linuxconfig.org/understanding-for...
Java String to SHA1
... i < b.length; i++) {
result +=
Integer.toString( ( b[i] & 0xff ) + 0x100, 16).substring( 1 );
}
return result;
}
BTW, you may get more compact representation using Base64. Apache Commons Codec API 1.4, has this nice utility to take away all the pain. refer here
...
Is it secure to store passwords as environment variables (rather than as plain text) in config files
I work on a few apps in rails, django (and a little bit of php), and one of the things that I started doing in some of them is storing database and other passwords as environment variables rather than plain text in certain config files (or in settings.py, for django apps).
...
Purge or recreate a Ruby on Rails database
...
I use the following one liner in Terminal.
$ rake db:drop && rake db:create && rake db:migrate && rake db:schema:dump && rake db:test:prepare
I put this as a shell alias and named it remigrate
By now, you can easily "chain" Rails tasks:
$ rake db:d...
Loop through files in a folder using VBA?
...nputDirectoryToScanForFile
StrFile = Dir(inputDirectoryToScanForFile & "\*" & filenameCriteria)
Do While Len(StrFile) > 0
Debug.Print StrFile
StrFile = Dir
Loop
End Function
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How to remove selected commit log entries from a Git repository while keeping their changes?
...ke to remove.
git rebase --onto commit-id^ commit-id
Note that this actually removes the change that was introduced by the commit.
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
... <stdio.h>
struct str{
int len;
char s[0];
};
struct foo {
struct str *a;
};
int main(int argc, char** argv) {
struct foo f={0};
if (f.a->s) {
printf( f.a->s);
}
return 0;
}
你编译一下上面的代码，在...
How to set layout_gravity programmatically?
...ity.TOP
}
For gravity values and how to set gravity check Gravity.
Basically, you should choose the LayoutParams depending on the parent. It can be RelativeLayout, LinearLayout etc...
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C: differences between char pointer and array [duplicate]
... address-of operator is used on either of these variables. For instance, &amp;pmessage returns a pointer of type char**, or a pointer to a pointer to chars, whereas &amp;amessage returns a pointer of type char(*)[16], or a pointer to an array of 16 chars (which, like a char**, needs to be dereferen...
HTML table headers always visible at top of window when viewing a large table
...n be added to a Drupal theme using drupal_add_js() in the theme's template.php as follows:
drupal_add_js('misc/tableheader.js', 'core');
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