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How to run cron job every 2 hours
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The line should read either:
0 0-23/2 * * * /home/username/test.sh
or
0 0,2,4,6,8,10,12,14,16,18,20,22 * * * /home/username/test.sh
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Error when changing to master branch: my local changes would be overwritten by checkout
... warning others which are begginers with git (they have to be beginners if reading this post) to be ready to say goodbye to any changes they made. I thought that time that changes done in one branch should stay on that branch until I checkout it again. Hint to newcomers who think that way too: use g...
How do I configure git to ignore some files locally?
...udesFile to the name of a file containing global patterns.
Note, if you already have unstaged changes you must run the following after editing your ignore-patterns:
git update-index --assume-unchanged <file-list>
Note on $GIT_DIR: This is a notation used all over the git manual simply to i...
Git - push current branch shortcut
...to set upstream tracking information in the local branch, if you haven't already pushed to the origin.
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Should I inherit from std::exception?
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@Emil: We have already gone through this argument. Where I pointed out that that is not what you are putting in the exception. You understanding of the subject seems good but your argument is flawed. Error messages generated for the user are ...
Can an html element have multiple ids?
...closed) so there is no issue with duplicate ids. Maybe some people aren't reading very closely.
– tvanfosson
Oct 12 '08 at 17:35
4
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How does Apple find dates, times and addresses in emails?
...tually developed a very long time ago called Apple Data Detectors. You can read more about it here:
http://www.miramontes.com/writing/add-cacm/
Essentially it parses the text and detects patterns that represent specific pieces of data, then applies OS-contextual actions to it. It's neat.
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When should I use Kruskal as opposed to Prim (and vice versa)?
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I found a very nice thread on the net that explains the difference in a very straightforward way : http://www.thestudentroom.co.uk/showthread.php?t=232168.
Kruskal's algorithm will grow a solution from the cheapest edge by adding the next cheapes...
C/C++ maximum stack size of program
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Stacks for threads are often smaller.
You can change the default at link time,
or change at run time also.
For reference, some defaults are:
glibc i386, x86_64: 7.4 MB
Tru64 5.1: 5.2 MB
Cygwin: 1.8 MB
Solaris 7..10: 1 MB
MacOS X 10.5: 46...
Pretty Printing a pandas dataframe
...is to convert the data_frame to an in-memory csv file and have prettytable read it. Here's the code:
from StringIO import StringIO
import prettytable
output = StringIO()
data_frame.to_csv(output)
output.seek(0)
pt = prettytable.from_csv(output)
print pt
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