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Hiding user input on terminal in Linux script
...-POSIX extension, so not all shells support it, such as the ash shell that comes with BusyBox; use the ssty -echo approach in such shells)
– mklement0
Apr 8 '14 at 13:30
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Identifying the dependency relationship for python packages installed with pip
...o get it run:
pip install pipdeptree
EDIT: as noted by @Esteban in the comments you can also list the tree in reverse with -r or for a single package with -p <package_name> so to find what installed Werkzeug you could run:
$ pipdeptree -r -p Werkzeug
Werkzeug==0.11.15
- Flask==0.12 [req...
How do I make a batch file terminate upon encountering an error?
...eq 0 exit /b !errorlevel!
)
Edit: You have to check the error after each command. There's no global "on error goto" type of construct in cmd.exe/command.com batch. I've also updated my code per CodeMonkey, although I've never encountered a negative errorlevel in any of my batch-hacking on XP or Vi...
Can I catch multiple Java exceptions in the same catch clause?
...ceptionB is inherited, either directly or indirectly, from ExceptionA. The compiler will complain:
Alternatives in a multi-catch statement cannot be related by subclassing
Alternative ExceptionB is a subclass of alternative ExceptionA
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Rotating videos with FFmpeg
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When I use this command, I get a low quality video output, unless -- as I've just discovered -- I use this parameter as well: -vcodec libx264. But it would be great if I didn't need to look up which encoding to use as ffmpeg should already k...
Copy array items into another array
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Spring MVC - How to get all request params in a map in Spring controller?
...ks for this. You can do the same thing with headers as well: stackoverflow.com/a/19556291/2599745
– Rob Worsnop
Dec 9 '15 at 21:48
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jQuery Validation plugin: disable validation for specified submit buttons
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Is there a Java equivalent or methodology for the typedef keyword in C++?
Coming from a C and C++ background, I found judicious use of typedef to be incredibly helpful. Do you know of a way to achieve similar functionality in Java, whether that be a Java mechanism, pattern, or some other effective way you have used?
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What is the proper way to format a multi-line dict in Python?
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