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What exactly is nullptr?
We now have C++11 with many new features. An interesting and confusing one (at least for me) is the new nullptr .
14 Answe...
Only get hash value using md5sum (without filename)
...
One way:
set -- $(md5sum $file)
md5=$1
Another way:
md5=$(md5sum $file | while read sum file; do echo $sum; done)
Another way:
md5=$(set -- $(md5sum $file); echo $1)
(Do not try that with back-ticks unless you're very brave an...
How to test if string exists in file with Bash?
I have a file that contains directory names:
13 Answers
13
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Emacs on Mac OS X Leopard key bindings
...N as META
In the menu bar, click Terminal
Click Preferences...
Under the Settings tab, go to the Keyboard tab
Check the box labeled Use option as meta key
That's it! You should be well on your way to becoming an Emacs master!
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How do I revert all local changes in Git managed project to previous state?
...ade to the index (i.e., that you have added), do this. Warning this will reset all of your unpushed commits to master!:
git reset
If you want to revert a change that you have committed, do this:
git revert <commit 1> <commit 2>
If you want to remove untracked files (e.g., new files...
Python multiprocessing pool.map for multiple arguments
In the Python multiprocessing library, is there a variant of pool.map which supports multiple arguments?
19 Answers
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How can I check the syntax of Python script without executing it?
I used to use perl -c programfile to check the syntax of a Perl program and then exit without executing it. Is there an equivalent way to do this for a Python script?
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Good ways to manage a changelog using git?
I've been using Git for a while now, and I recently started using it to tag my releases so that I could more easily keep track of changes and be able to see which version each of our clients are running (unfortunately the code currently mandates that each client have their own copy of the PHP site; ...
Is it possible to specify a starting number for an ordered list?
...ML 5; which is:
<!doctype html>
With that doctype, it is valid to set a start attribute on an ordered list. Such as:
<ol start="6">
<li>Lorem</li>
<li>Ipsum</li>
<li>Dolor</li>
</ol>
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How can I pass a member function where a free function is expected?
The question is the following: consider this piece of code:
9 Answers
9
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