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How do I get both STDOUT and STDERR to go to the terminal and a log file?
...
The Pattern
the_cmd 1> >(tee stdout.txt ) 2> >(tee stderr.txt >&2 )
This redirects both stdout and stderr separately, and it sends separate copies of stdout and stderr to the caller (which might be your terminal).
In zsh, it will not proceed to...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
... 默认sqlite3
优化库导入导出方法
.aix 拓展下载：
cn.fun123.SQLite.aix - v1.3
中文网测试案例
.aia 测试源码下载：
TestSqlite.aia
打开数据库
一般可以在屏幕初始化时打开db。如果...
Renaming a virtualenv folder without breaking it
...uirements, or can get them, Make a new virtualenv:
Create a requirements.txt file
(env)$ pip freeze > requirements.txt
If you can't create the requirements.txt file, check env/lib/pythonX.X/site-packages before removing the original env.
Delete the existing (env)
deactivate && rm -...
nodeJs callbacks simple example
...e of using both functions.
Synchronous:
var data = fs.readFileSync('test.txt');
console.log(data);
The code above blocks thread execution until all the contents of test.txt are read into memory and stored in the variable data. In node this is typically considered bad practice. There are times th...
关于我们 · App Inventor 2 中文网，少儿编程陪伴者
...帮助”菜单 -> AI伴侣信息，直接手机扫码安装到手机 或 下载AI伴侣到电脑并拖动到商业模拟器安装。 注：手机和电脑必须在同一局域网内，原理是电脑端启动WEB服务器，手机AI伴侣与WEB通信；电脑连手机热...
How to create a GUID/UUID in Python
... for the device's permanent UUID. Throws if command missing/fails.
txt = subprocess.check_output("wmic csproduct get uuid").decode()
# Attempt to extract the UUID from the command's result.
match = re.search(r"\bUUID\b[\s\r\n]+([^\s\r\n]+)", txt)
if match is not None...
CMake: How to build external projects and include their targets
... have to install Project A manually before invoking Project B's CMakeLists.txt - just like any other third-party dependency added this way or via find_file / find_library / find_package.
If you want to make use of ExternalProject_Add, you'll need to add something like the following to your CMakeLis...
Read a variable in bash with a default value
...
Code:
IN_PATH_DEFAULT="/tmp/input.txt"
read -p "Please enter IN_PATH [$IN_PATH_DEFAULT]: " IN_PATH
IN_PATH="${IN_PATH:-$IN_PATH_DEFAULT}"
OUT_PATH_DEFAULT="/tmp/output.txt"
read -p "Please enter OUT_PATH [$OUT_PATH_DEFAULT]: " OUT_PATH
OUT_PATH="${OUT_PATH:-...
How does a public key verify a signature?
...ncrypting):
openssl rsautl -encrypt -inkey public.pem -pubin -in message.txt -out message.ssl
openssl rsautl -decrypt -inkey private.pem -in message.ssl -out message.txt
Private key encrypts, public key decrypts (signing):
openssl rsautl -sign -inkey private.pem -in message.txt ...
node.js: read a text file into an array. (Each line an item in the array.)
...
console.log('Line: ' + data);
}
var input = fs.createReadStream('lines.txt');
readLines(input, func);
EDIT: (in response to comment by phopkins) I think (at least in newer versions) substring does not copy data but creates a special SlicedString object (from a quick glance at the v8 source cod...