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How do I get the result of a command in a variable in windows?
I'm looking to get the result of a command as a variable in a Windows batch script (see how to get the result of a command in bash for the bash scripting equivalent). A solution that will work in a .bat file is preferred, but other common windows scripting solutions are also welcome.
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How should strace be used?
...rogram is interacting with the OS. It does this by monitoring system calls and signals.
Uses
Good for when you don't have source code or don't want to be bothered to really go through it.
Also, useful for your own code if you don't feel like opening up GDB, but are just interested in understanding ...
What is the argument for printf that formats a long?
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On most platforms, long and int are the same size (32 bits). Still, it does have its own format specifier:
long n;
unsigned long un;
printf("%ld", n); // signed
printf("%lu", un); // unsigned
For 64 bits, you'd want a long long:
long long n;
uns...
How to extract a string using JavaScript Regex?
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You need to use the m flag:
multiline; treat beginning and end characters (^ and $) as working
over multiple lines (i.e., match the beginning or end of each line
(delimited by \n or \r), not only the very beginning or end of the
whole input string)
Also put the * in the r...
windbg 备忘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...| 1 s
sx, sxd, sxe, sxi, sxn, sxr, sx- (Set Exceptions)
The sx* commands control the action that the debugger takes when an exception occurs in the application that is being debugged, or when certain events occur.
--引http://www.vcfans.com/2010/04/windbg-study-notes-order.html
Win...
How can I specify working directory for popen
Is there a way to specify the running directory of command in Python's subprocess.Popen() ?
1 Answer
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Scala: write string to file in one statement
...ding-safe. If an exception happens in write(), close will never be called, and the file won't be closed. PrintWriter also uses the default system encoding, which is very bad for portability. And finally, this approach generates a separate class specifically for this line (however, given that Scala a...
Core dumped, but core file is not in the current directory?
...e pattern is a '|', the kernel will treat
the rest of the pattern as a command to run. The core dump will be
written to the standard input of that program instead of to a file.
Instead of writing the core dump to disk, your system is configured to send it to the abrt program instead. Automated B...
Why does this code using random strings print “hello world”?
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When an instance of java.util.Random is constructed with a specific seed parameter (in this case -229985452 or -147909649), it follows the random number generation algorithm beginning with that seed value.
Every Random constructed with the same seed will ...
Merging dictionaries in C#
...ary(group => group.Key, group => group.First());
It's a bit ugly - and inefficient - but it's the quickest way to do it in terms of code. (I haven't tested it, admittedly.)
You could write your own ToDictionary2 extension method of course (with a better name, but I don't have time to think ...