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How can I join elements of an array in Bash?
If I have an array like this in Bash:
30 Answers
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How to make a phone call in android and come back to my activity when the call is done?
...can I launch a call activity which comes back to me when 'End call' button is pressed? This is how I'm making the phone call:
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How do you 'redo' changes after 'undo' with Emacs?
This article says that "Emacs has redo because you can reverse direction while undoing, thereby undoing the undo".
9 Answe...
How can I tell when a MySQL table was last updated?
...e, I would like to add something like "last updated the xx/xx/200x" with this date being the last time a certain mySQL table has been updated.
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How to extract one column of a csv file
If I have a csv file, is there a quick bash way to print out the contents of only any single column? It is safe to assume that each row has the same number of columns, but each column's content would have different length.
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Limiting floats to two decimal points
... numbers that not all numbers can be represented exactly. The command line is just showing you the full floating point form from memory.
With floating point representation, your rounded version is the same number. Since computers are binary, they store floating point numbers as an integer and then ...
What is a .h.gch file?
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A .gch file is a precompiled header.
If a .gch is not found then the normal header files will be used.
However, if your project is set to generate pre-compiled headers it will make them if they don’t exist and use them in the next bu...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...it has a well-known, or at least sort-of-well-known, empty tree whose SHA1 is:
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How can I determine the URL that a local Git repository was originally cloned from?
I pulled a project from GitHub a few days ago. I've since discovered that there are several forks on GitHub, and I neglected to note which one I took originally. How can I determine which of those forks I pulled?
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How to bind 'touchstart' and 'click' events but not respond to both?
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edited May 1 '15 at 20:20
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