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Capturing Groups From a Grep RegEx
...he following examples and more, which may not be what you're looking for:
123_abc_d4e5
xyz123_abc_d4e5
123_abc_d4e5.xyz
xyz123_abc_d4e5.xyz
To eliminate the second and fourth examples, make your regex like this:
^[0-9]+_([a-z]+)_[0-9a-z]*
which says the string must start with one or more digit...
Replace comma with newline in sed on MacOS?
...
123
sed 's/,/\
/g'
works on Mac OS X.
...
Timeout command on Mac OS X?
...l
the >nul gets rid of the output. So instead of showing 64 BYTES FROM 123.45.67.8 BLAH BLAH BLAH it'll just show a blank newline until it times out. -t flag can be changed to any number.
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How do I concatenate multiple C++ strings on one line?
...tring s = string("abc").append("def").append(otherStrVar).append(to_string(123));
– Patricio Rossi
Nov 12 '17 at 2:46
1
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How to print from GitHub
..., the tool is useless if it is not reliable.
– Ragnar123
Oct 28 '14 at 13:24
21
note that this op...
Where to put Gradle configuration (i.e. credentials) that should not be committed?
...
~/.gradle/gradle.properties:
mavenUser=admin
mavenPassword=admin123
build.gradle:
...
authentication(userName: mavenUser, password: mavenPassword)
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...
import module from string variable
...ike importlib.import_module("feature.email")
– Seanny123
Dec 6 '13 at 7:13
11
Finally, also remem...
App Inventor 2 上传文件和图片到服务器教程 · App Inventor 2 中文网
...示例
Camera 拍照
/storage/emulated/0/PIC_123.jpg
ImagePicker 选择
content://com.android.providers.media.documents/document/image%3A123
App 内部文件
/data/data/pkg.name/files/myfile.txt
ASD 目录
...
grant remote access of MySQL database from any IP address
...
TO 'user'@'%'
% is a wildcard - you can also do '%.domain.com' or '%.123.123.123' and things like that if you need.
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Microsecond timing in JavaScript
...returns the number of microseconds in the fractional (e.g. a value of 1000.123 is 1 second and 123 microseconds).
now() is monotonically increasing. This is important as Date.getTime() can possibly jump forward or even backward on subsequent calls. Notably, if the OS's system time is updated (e.g....