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Remove the last line from a file in Bash
...sed.
MacOS:
On Mac OS X (as of 10.7.4), the equivalent of the sed -i command above is
sed -i '' -e '$ d' foo.txt
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How set background drawable programmatically in Android
...rrect.
Another way to achieve it is to use the following:
final int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
layout.setBackgroundDrawable(ContextCompat.getDrawable(context, R.drawable.ready) );
} else {
layout.setBackground(ContextComp...
各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...：
// 写文件
$fp = fopen("log.txt", "a");
fwrite($fp, $str);
fclose($fp);
// 读文件
$fp = fopen("log.txt", "r");
while(!feof($fp)) {
$line = fgets($fp);
echo $line;
}
fclose($fp);
C#读写文件：
using System.IO;
private void ReadWriteFunc(string str)
{ ...
How to compile and run C/C++ in a Unix console/Mac terminal?
...utable as the shell will only search what is in $PATH to find executables, and most often that does not include the current directory (.).
So to run the built executable foo:
./foo
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How to increase heap size of an android application?
I am writing an Android application which uses several 3D models. Such a model with textures can take up a lot of memory. I found out the manufacturer sets a limit on the heap size an application can use. For example my tablet Samsung Galaxy Tab 8.9 P7310 can take up 64MB of memory.
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How can I find the version of the Fedora I use?
...on't work if anyone's changed the login banners … I typically edit mine, and so, it seems, do many (most) corporate IT departments... :-(
– BRPocock
Dec 2 '11 at 16:05
8
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How can I distribute python programs?
...th distutils. It's made both for distributing library type python modules, and python applications, although I don't know how it works on Windows. You would on Windows have to install Python separately if you use distutils, in any case.
I'd probably recommend that you distribute it with disutils fo...
Curl GET request with json parameter
I am trying to send a "GET" request to a remote REST API from Command Prompt via cURL like this:
7 Answers
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How to show the last queries executed on MySQL?
...method to editing .cnf files because:
you're not editing the my.cnf file and potentially permanently turning on logging
you're not fishing around the filesystem looking for the query log - or even worse, distracted by the need for the perfect destination. /var/log /var/data/log /opt /home/mysql_s...
How to set current working directory to the directory of the script in bash?
... If you called the script as ./script, . is the correct directory, and changing to . it will also end up in the very directory where script is located, i.e. in the current working directory.
– ndim
Aug 27 '14 at 20:10
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