大约有 45,000 项符合查询结果（耗时：0.0591秒） [XML]
How to check if a process id (PID) exists
...s -p $PID > /dev/null
then
echo "$PID is running"
# Do something knowing the pid exists, i.e. the process with $PID is running
fi
The problem with:
kill -0 $PID
is the exit code will be non-zero even if the pid is running and you dont have permission to kill it. For example:
kill -0 1...
Rails: How does the respond_to block work?
...
No kidding. If you already know how to code, rails might not be for you :-P
– Limited Atonement
Sep 15 at 15:46
add a comment
...
Remove duplicate elements from array in Ruby
...
no, the uniq! method will return nil if the array had been unique yet Ex: a = [1,2,3,4] a.uniq -> [1,2,3,4] but a.uniq! -> nil
– duykhoa
Apr 4 '13 at 8:37
...
Realistic usage of the C99 'restrict' keyword?
...dest[i] = src1[i]*src2[i];
}
}
The compiler needs to properly handle if dest, src1, and src2 overlap, meaning it must do one multiplication at a time, from start to the end. By having restrict, the compiler is free to optimize this code by using the vector instructions.
Wikipedia has an entr...
error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in m
...y.
Code which is converted to dll is using function from 1 lib called ClassificationFramework. I provided this lib as headers and cpp so basically source code. In Exe solution I linked my generated library + some other libs to run it + ClassificationFramework.dll. Everything works fine when I use Re...
Need to ZIP an entire directory using Node.js
...iver, unfortunately, doesn't support Unicode characters in filenames as of now. Reported to github.com/ctalkington/node-archiver/issues/90.
– Eye
Aug 28 '14 at 9:35
...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...yes nice but overkill, especially considering it is pretty much deprecated now for php 5.7
– Andrew
Mar 21 '16 at 17:30
add a comment
|
...
How should I pass multiple parameters to an ASP.Net Web API GET?
...If record marking has another purpose, POST is the way to go. User should know, that his actions effect the system and POST method is a warning.
share
|
improve this answer
|
...
Getting MAC Address
...module can be used and the only method under Linux I could find was to run ifconfig and run a regex across its output. I don't like using a package that only works on one OS, and parsing the output of another program doesn't seem very elegant not to mention error prone.
...
Git push/clone to new server
...ne --bare /path/to/repo /path/to/bare/repo.git # don't forget the .git!
Now, archive up the new repo.git directory using tar/gzip or whatever your favorite archiving tool is and then copy the archive to the server.
Unarchive the repo on your server. You'll then need to set up a remote on your l...