command

问题 I want to invoke a command on TextChange event of new windows phone 8.1 AutoCompleteBox Control. I am using MVVM Light. 回答1: In new windows store 8.1 apps there is a new SDK Behavior SDK for adding behaviors in the application. it is not added by default you have to add this Extension in your project. below is how to add this extension in your project. install the Behavior SDK from the list. Now in your XAML page add following namespaces to InvokeActionCommand that is capable of invoking

问题 I have multiple text file with about 100,000 lines and I want to split them into smaller text files of 5000 lines each. I used: split -l 5000 filename.txt That creates files: xaa xab aac xad xbe aaf files with no extensions. I just want to call them something like: file01.txt file02.txt file03.txt file04.txt or if that is not possible, i just want them to have the ".txt" extension. 回答1: I know the question has been asked a long time ago, but I am surprised that nobody has given the most

问题 In Bash, I would like an if statement which is based of the exit code of running a command. For example: #!/bin/bash if [ ./success.sh ]; then echo "First: success!" else echo "First: failure!" fi if [ ./failure.sh ]; then echo "Second: success!" else echo "Second: failure!" fi success.sh #!/bin/bash exit 0 failure.sh #!/bin/bash exit 1 This should print out: First: success! Second: failure! How would I achieve this? Thanks! 回答1: Just remove the brackets: #!/bin/bash if ./success.sh; then

问题 I'm having some difficulty with Context Menu commands on my View Model. I'm implementing the ICommand interface for each command within the View Model, then creating a ContextMenu within the resources of the View (MainWindow), and using a CommandReference from the MVVMToolkit to access the current DataContext (ViewModel) Commands. When I debug the application, it appears that the CanExecute method on the command is not being called except at the creation of the window, therefore my Context

问题 I want to run multiple functions when I click a button. For example I want my button to look like self.testButton = Button(self, text = "test", command = func1(), command = func2()) when I execute this statement I get an error because I cannot allocate something to an argument twice. How can I make command execute multiple functions. 回答1: You could create a generic function for combining functions, it might look something like this: def combine_funcs(*funcs): def combined_func(*args, **kwargs

问题 Before iOS 6.x, I used open package_id to open a app from command line on a iOS device. On iOS 6.x if i use this command SpringBoard crashes. Open is available from BigBoss and the author is Conrad Kramer. Is there an alternative or a fix for the open command from BigBoss? 回答1: Update: It looks like the original /usr/bin/open has been updated for iOS 6 on Cydia, so I recommend you try that first. Original Answer: I miss open , too! But, until it gets updated for iOS 6, you can just build your

问题 What is the clearcase Command to find all view private files in the current directory recursively? 回答1: The usual commands are based on cleartool ls: ct lsprivate : but it is only for dynamic views, not snapshot views ct ls -rec -view_only : at least, it works in both snapshot and dynamic views However both list also your checked-out files. If you want only the private files, ie skipping the hijacked/eclipsed/checked-out and symlinks , you need to filter those out. In Windows, that would be:

问题 What's the easiest/quickest way to interleave the lines of two (or more) text files? Example: File 1: line1.1 line1.2 line1.3 File 2: line2.1 line2.2 line2.3 Interleaved: line1.1 line2.1 line1.2 line2.2 line1.3 line2.3 Sure it's easy to write a little Perl script that opens them both and does the task. But I was wondering if it's possible to get away with fewer code, maybe a one-liner using Unix tools? 回答1: paste -d '\n' file1 file2 回答2: Here's a solution using awk : awk '{print; if(getline <

问题 I know how to run a command using cmd = subprocess.Popen and then subprocess.communicate. Most of the time I use a string tokenized with shlex.split as 'argv' argument for Popen. Example with "ls -l": import subprocess import shlex print subprocess.Popen(shlex.split(r'ls -l'), stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE).communicate()[0] However, pipes seem not to work... For instance, the following example returns noting: import subprocess import shlex print

问题 Is it possible to open the command prompt (and I guess any other terminal for other systems), and execute commands in the newly opened window? Currently what I have is this: Runtime rt = Runtime.getRuntime(); rt.exec(new String[]{"cmd.exe","/c","start"}); I've tried adding the next command after the "start", I've tried running another rt.exec containing my command, but I can't find a way to make it work. If it matters, I'm trying to run a command similar to this: java -flag -flag -cp terminal