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Capture characters from standard input without waiting for enter to be pressed
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On Linux (and other unix-like systems) this can be done in following way:
#include <unistd.h>
#include <termios.h>
char getch() {
char buf = 0;
struct termios old = {0};
if (tcgetattr(0, &old) < 0)
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How can I get pg_dump to authenticate properly
...cation method to trust. This will allow connecting to postgres via a local unix socket as any user with no password. It can be done by simply changing peer above to trust and reloading postgres.
# Don't require a password for local connections
local all all ...
“ImportError: No module named” when trying to run Python script
...NPATH as a global var is os dependent, and is discussed in detail here for Unix or Windows.
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Running Python code in Vim
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If you're on os x (and I assume unix) ".vimrc" is in the home directory. You can check this by typing ':version' in command mode to check for sure you'll see a line called 'user vimrc file: "..."'
– ThinkBonobo
Jun 27 ...
What is “String args[]”? parameter in main method Java
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@Luke That can not be true, at least not on Unix systems. There the shell passes arguments to the program already split according to the shell's rules (with quoting/escaping removed accordingly). There is no way for the program (the java interpreter in this case) to ac...
Eclipse hangs on loading workbench
...e that if not properly closed, prevents eclipse from starting properly. On Unix based systems you can type following on command line;
rm -r workspace/.metadata
Delete your .eclipse directory in your home directory. Launch eclipse. If that doesn't work,
Open eclipse under another user account. If i...
tmux: How to join two tmux windows into one, as panes?
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@IshanKhare this is good shortcut: unix.stackexchange.com/a/14301/337677
– Noel Evans
Aug 25 at 15:04
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What is the difference between SIGSTOP and SIGTSTP?
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Not the answer you're looking for? Browse other questions tagged unix signals signal-handling or ask your own question.
Objective-C: Reading a file line by line
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Mac OS X is Unix, Objective-C is C superset, so you can just use old-school fopen and fgets from <stdio.h>. It's guaranteed to work.
[NSString stringWithUTF8String:buf] will convert C string to NSString. There are also methods for...
Showing the stack trace from a running Python application
...or unknown and irreproducible reasons. Its a bit hacky, and only works on unix (requires signals):
import code, traceback, signal
def debug(sig, frame):
"""Interrupt running process, and provide a python prompt for
interactive debugging."""
d={'_frame':frame} # Allow access to...