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How to pass in password to pg_dump?

I'm trying to create a cronjob to back up my database every night before something catastrophic happens. It looks like this command should meet my needs: ...
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Modular multiplicative inverse function in Python

Does some standard Python module contain a function to compute modular multiplicative inverse of a number, i.e. a number y = invmod(x, p) such that x*y == 1 (mod p) ? Google doesn't seem to give any good hints on this. ...
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Export to CSV via PHP

Let's say I have a database.... is there a way I can export what I have from the database to a CSV file (and text file [if possible]) via PHP? ...
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How to find keys of a hash?

I know in javascript Objects double as hashes but i have been unable to find a built in function to get the keys 9 Answers...
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Iterate keys in a C++ map

Is there a way to iterate over the keys, not the pairs of a C++ map? 19 Answers 19 ...
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Giving UIView rounded corners

My login view has a subview which has a UIActivityView and a UILabel saying "Signing In…". This subview has corners which aren't rounded. How can I make them round? ...
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JavaScript seconds to time string with format hh:mm:ss

... duration of time, i.e., number of seconds to colon-separated time string (hh:mm:ss) 43 Answers ...
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How to comment out a block of Python code in Vim

I was wondering if there was any key mapping in Vim to allow me to indent certain lines of code (whether those lines have been selected in visual mode, or n lines above/below current cursor position). ...
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How do I find all files containing specific text on Linux?

...aining a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name. 50 Answers ...
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Why is “a” != “a” in C?

Why is the output No, not equal ? 11 Answers 11 ...