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Launching an application (.EXE) from C#?
...Check out this article on how to use it.
Process.Start("notepad", "readme.txt");
string winpath = Environment.GetEnvironmentVariable("windir");
string path = System.IO.Path.GetDirectoryName(
System.Windows.Forms.Application.ExecutablePath);
Process.Start(winpath + @"\Microsoft.NET\F...
Display number with leading zeros
...
x = "%02d.txt" % i raises TypeError (cannot concatenate 'str' and 'int' objects), but x = "%02d.txt" % (i,) does not. Interesting. I wonder where is that documented
– theta
Nov 5 '12 at 18:10
...
How can I exclude all “permission denied” messages from “find”?
...ncluding a -name filter, as follows:
find . ! -readable -prune -o -name '*.txt'
This, however, does not work as intended, because the trailing -print action is required (an explanation can be found in this answer). Such subtleties can introduce bugs.
The first solution in Jonathan Leffler's answer...
What is “String args[]”? parameter in main method Java
...tion. For example, if I invoke the program like so:
$ java MyProg -f file.txt
Then args will be an array containing the strings "-f" and "file.txt".
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how to read all files inside particular folder
...;
StringBuilder sb = new StringBuilder();
foreach (string txtName in Directory.GetFiles(@"D:\Links","*.txt"))
{
using (StreamReader sr = new StreamReader(txtName))
{
sb.AppendLine(txtName.ToString());
sb.AppendLine("= = = = = =");
...
Replace a string in shell script using a variable
...e, you need to use double-quotes like
sed -i "s#12345678#$replace#g" file.txt
This will break if $replace contain special sed characters (#, \). But you can preprocess $replace to quote them:
replace_quoted=$(printf '%s' "$replace" | sed 's/[#\]/\\\0/g')
sed -i "s#12345678#$replace_quoted#g" fil...
Using awk to remove the Byte-order mark
...M from all text files in current directory:
sed -i '1 s/^\xef\xbb\xbf//' *.txt
On FreeBSD:
sed -i .bak '1 s/^\xef\xbb\xbf//' *.txt
Advantage of using GNU or FreeBSD sed: the -i parameter means "in place", and will update files without the need for redirections or weird tricks.
On Mac:
This aw...
How do I remove/delete a virtualenv?
...c Turner commentary
source venv/bin/activate
pip freeze > requirements.txt
pip uninstall -r requirements.txt -y
deactivate
rm -r venv/
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用户界面（UI）组件 · App Inventor 2 中文网
... 未指定 (unspecified)
查看 Android 开发者可能的完整列表的文档选项。
允许滚动
勾选（或设置真）后，屏幕上会出现一个垂直滚动条，应用程序高度能超出设备的物理高度。未选中时，应用程序高度受限于设备的...
GridCtrl 控件FAQ - C/C++ - 清泛网 - 专注C/C++及内核技术
...Item函数自己设计函数，这样就可以实现遍历操作了。
推荐使用以下用法：
int sel=m_Grid.GetNextRow(-1, GVNI_SELECTED);
while(sel!=-1)
{
//做一些事情
sel=m_Grid.GetNextRow(sel, 2);
//那个GVNI_SELECTED的值是2,其中GetNextRow是扩展定义的...