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How to 'grep' a continuous stream?
Is that possible to use grep on a continuous stream?
12 Answers
12
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Why does the C preprocessor interpret the word “linux” as the constant “1”?
...le names like unix and assumed that programmers would simply avoid using those names for their own purposes.
The 1989 ANSI C standard introduced rules restricting what symbols an implementation could legally predefine. A macro predefined by the compiler could only have a name starting with two unde...
Python Pandas: Get index of rows which column matches certain value
...ool (PS: about how to use it please check link )
df.query('BoolCol')
Out[123]:
BoolCol
10 True
40 True
50 True
After we filter the original df by the Boolean column we can pick the index .
df=df.query('BoolCol')
df.index
Out[125]: Int64Index([10, 40, 50], dtype='int64')
Als...
What can be the reasons of connection refused errors?
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There could be many reasons, but the most common are:
The port is not open on the destination machine.
The port is open on the destination machine, but its backlog of pending connections is full.
A firewall between the client and server is blocking access (also...
How to recursively download a folder via FTP on Linux [closed]
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123
Better use wget -m (--mirror). wget -r is limited to a recursion depth of 5 by default.
– asmaier
J...
Pod install is staying on “Setting up CocoaPods Master repo”
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You could try running in verbose mode:
pod install --verbose
This'll show you what cocoapods is up to:
Setting up CocoaPods master repo
Cloning spec repo `master` from `https://github.com/CocoaPods/Specs.git` (branch `master`)
$ /usr/bin/git clone...
Android emulator doesn't take keyboard input - SDK tools rev 20
....android.com/tools/devices/managing-avds-cmdline.html#hardwareopts
On Mac OS and Linux you can edit all of your emulator configurations with one Terminal command:
for f in ~/.android/avd/*.avd/config.ini; do echo 'hw.keyboard=yes' >> "$f"; done
On a related note, if your tablet emulator i...
How to remove trailing whitespace of all files recursively?
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Here is an OS X >= 10.6 Snow Leopard solution.
It Ignores .git and .svn folders and their contents. Also it won't leave a backup file.
export LC_CTYPE=C
export LANG=C
find . -not \( -name .svn -prune -o -name .git -prune \) -type f...
How can I put strings in an array, split by new line?
...ful with this solution, as it does not work on all newlines. I've had the most success with David's answer
– Maurice
Aug 29 '12 at 7:31
1
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Why cast unused return values to void?
...o object (for all well behaving classes that is! :)). Another example is: os <<"Hello World" << std::endl. Each of them returns the "os" object.
– Richard Corden
Mar 27 '09 at 18:07
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