大约有 14,600 项符合查询结果（耗时：0.0403秒） [XML]
How to redirect and append both stdout and stderr to a file with Bash?
...Bash pre-4) way is:
cmd >> outfile 2>&1
A nonportable way, starting with Bash 4 is
cmd &>> outfile
(analog to &> outfile)
For good coding style, you should
decide if portability is a concern (then use classic way)
decide if portability even to Bash pre-4 is a c...
Get current time in seconds since the Epoch on Linux, Bash
...you use -2 as argument instead of -1, Bash will use the time the shell was started instead of the current date. This can be used to compute elapsed times
$ printf -v beg '%(%s)T\n' -2
$ printf -v now '%(%s)T\n' -1
$ echo beg=$beg now=$now elapsed=$((now-beg))
beg=1583949610 now=1583953032 elapsed=...
How can I add timestamp to logs using Node.js library Winston?
... forever to achieve logging with timestap for your nodejs server.
When you start a server add log output as part of the parameter:
forever start -ao log/out.log server.js
And then you can write util in your server.js
server.js
var util = require('util');
util.log("something with timestamp");
...
How to configure port for a Spring Boot application
...port=5566 -jar <path/to/my/jar> --server.port=7788
The server will start and listen on port 7788.
This is very useful providing default properties in PropertySources with lower precedence (and usually packaged in the archive or coded in the source), and then override it in the runtime envir...
What APIs are used to draw over other apps (like Facebook's Chat Heads)?
...tHead != null) windowManager.removeView(chatHead);
}
}
Don't forget to start the service somehow:
startService(new Intent(context, ChatHeadService.class));
.. And add this service to your Manifest.
share
|
...
NodeJS: How to get the server's port?
...u often see example hello world code for Node that creates an Http Server, starts listening on a port, then followed by something along the lines of:
...
Reminder - \r\n or \n\r?
...k it matters whether we advance the paper before or after returning to the start of the line. Both \r\n and \n\r put the paper in the same position.
– Rob Kennedy
Jun 30 '11 at 19:29
...
Removing colors from output
...ipt | sed 's/\x1B\[[0-9;]\{1,\}[A-Za-z]//g'
This will catch anything that starts with [, has any number of decimals and semicolons, and ends with a letter. This should catch any of the common ANSI escape sequences.
For funsies, here's a larger and more general (but minimally tested) solution for al...
Wireshark localhost traffic capture [closed]
...:
only 17 kB!
no external libraries needed
extremely simple to use (just start it, choose the loopback interface and destination file and that's all)
After the traffic has been captured, you can open it and examine in Wireshark normally. The only disadvantage that I found is that you cannot set ...
How much is the overhead of smart pointers compared to normal pointers in C++?
...shared_ptrs and you have not enough memory to the point that your computer starts wrinkling, like an old lady being plummeted to the ground by an unbearable force from afar.
What would make your code slower is sluggish searches, unnecessary loop processing, huge copies of data, and a lot of write op...