command

问题 I am reading line by line from a properties file to another file using below code(batch file). The problem is It is removing all the blank lines from the source file. What changes I should do in order to make blank lines available to destination file? FOR /F "USEBACKQ tokens=*" %%A IN (`FIND /V "" ^<"%FILE%.SRC"`) DO ( ECHO %%A>>"%FILE%" ) 回答1: FOR /F will always skip empty lines, so you have to avoid empty lines. This can be solved with prepending the lines by a line number with findstr or

问题 I know very well how to execute commands via Runtime.getRuntime().exec(command) and handle the output, but this is VERY limited. Take Windows for example (Vista specifically but that shouldn't matter). How can I execute commands like 'echo', 'cd', 'md', 'rd', and any other command rooted inside of the cmd.exe through ProcessBuilder (or whatever class) in Java? 回答1: You just call cmd /c dir rather than just dir in Runtime.exec or ProcessBuilder or some other way to run external applications in

问题 I am trying to download Laravel HTML dependencies with Composer. composer.json is here: "name": "laravel/laravel", "description": "The Laravel Framework.", "keywords": ["framework", "laravel"], "license": "MIT", "type": "project", "require": { "php": ">=5.5.9", "laravel/framework": "5.2.*", "illuminate/html": "5.2" }, And when I run composer update or php composer update , the terminal log is: E:\xampp\htdocs\lara-test>composer update > php artisan clear-compiled [InvalidArgumentException]

问题 I'm writing a batch file for Windows and use the command 7z (7-Zip). I have put the location of it in the PATH. Is there a relatively easy way to check whether the command is available? 回答1: An attempt to execute 7z.exe will return an %errorlevel% of 9009 if the command is not found. You can check that. 7z.exe if %errorlevel%==9009 echo Command Not Found Note : This solution is viable for this specific 7zip use case, and likely for plenty of others. But as a general rule, executing a command

问题 I want to run a python file in my command prompt but it does nothing. These are the screen shots of my program i am testing with and the output the command prompt gives me. 回答1: First set path of python https://stackoverflow.com/questions/3701646/how-to-add-to-the-pythonpath-in-windows and run python file python filename.py command line argument with python python filename.py command-line argument 回答2: You have to install Python and add it to PATH on Windows . After that you can try: python

问题 I want to use design pattern for this switch - case code. I tried to use the command pattern, but I could not understand how(I was programming only 2 for months) I wrote this program to learn how to better program. My code: public class Server { private static final String READ_NEW_MESSAGES = "read new mes"; private static final String SEND_PRIVATE_MESSAGES = "send mes"; private static final String JOIN_CHAT = "find chat"; private static final String CREATE_CHAT = "chating"; private static

问题 I want to use design pattern for this switch - case code. I tried to use the command pattern, but I could not understand how(I was programming only 2 for months) I wrote this program to learn how to better program. My code: public class Server { private static final String READ_NEW_MESSAGES = "read new mes"; private static final String SEND_PRIVATE_MESSAGES = "send mes"; private static final String JOIN_CHAT = "find chat"; private static final String CREATE_CHAT = "chating"; private static

问题 I'm trying to run a very simple command in Linux via .NET using the SharpSsh .NET library. The code doesn't throw any exceptions, and it's still not working. When I run the sudo php /www/data/{directory}/scripts/create_file.php command from the terminal it creates the file. And when I run the sudo php /www/data/{directory}/scripts/delete_file.php command from the terminal, it deletes the file. When calling this code from .NET, I don't see the file being created/deleted. See this answer for

问题 I have a string property in my ViewModel/Datacontext and want a simple button that copies its contents to the clipboard. Is this possible to do from XAML, or I do I need to handle the button click event (or use an ICommand) to accomplish this? I thought the following would work, but my button is always greyed out: <Button Width="100" Content="Copy" Command="ApplicationCommands.Copy" CommandTarget="{Binding MyStringProperty}"/> 回答1: The ApplicationCommands are expecting to be in a Toolbar or

问题 i found resources talk about Wifi direct commands in linux at this link . i am wondered if these commands are applicable for android WIFI DIRECT ??? i need to access WIFI direct from terminal using rooted device. 来源： https://stackoverflow.com/questions/15314877/if-this-linux-commands-applicable-for-android-wifi-direct