大约有 47,000 项符合查询结果（耗时：0.0299秒） [XML]
Calculate RSA key fingerprint
...
Run the following command to retrieve the SHA256 fingerprint of your SSH key (-l means "list" instead of create a new key, -f means "filename"):
$ ssh-keygen -lf /path/to/ssh/key
So for example, on my machine the command I ran was (using RSA pu...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
What do 'real', 'user' and 'sys' mean in the output of time?
6 Answers
6
...
Search and replace in bash using regular expressions
...is method, i.e. perl, awk, e.g.:
echo "$MYVAR" | perl -pe 's/[a-zA-Z]/X/g and s/[0-9]/N/g'
This may allow you to do more creative matches... For example, in the snip above, the numeric replacement would not be used unless there was a match on the first expression (due to lazy and evaluation). A...
Why is Node.js single threaded? [closed]
... run on the same thread (they can even share the same variables!) I understand that I/O operations are event-based so they don't block the main thread loop.
...
Why and when to use Node.js? [duplicate]
Sorry if I'm a bit ambiguous, but I'm trying to understand the real advantages of using Node.js instead of other server-side language.
...
FixedThreadPool vs CachedThreadPool: the lesser of two evils
...similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the threads (several minutes) " long lived ".
...
When should I use mmap for file access?
... environments provide at least two ways of accessing files. There's the standard system calls open() , read() , write() , and friends, but there's also the option of using mmap() to map the file into virtual memory.
...
How can I Remove .DS_Store files from a Git repository?
...r created if it isn't there already). You can do this easily with this command in the top directory
echo .DS_Store >> .gitignore
Then
git add .gitignore
git commit -m '.DS_Store banished!'
share
|
...
Multithreading: What is the point of more threads than cores?
...nterruption. In reality this isn't the case. Even if you have four cores and four working threads, your process and it threads will constantly be being switched out for other processes and threads. If you are running any modern OS, every process has at least one thread, and many have more. All t...
How to read from standard input in the console?
I would like to read standard input from the command line, but my attempts have ended with the program exiting before I'm prompted for input. I'm looking for the equivalent of Console.ReadLine() in C#.
...