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How do I tell if a regular file does not exist in Bash?
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The test command ([ here) has a "not" logical operator which is the exclamation point (similar to many other languages). Try this:
if [ ! -f /tmp/foo.txt ]; then
echo "File not found!"
fi
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What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
There are tons of questions and answers about Git versus TFVC Source Control, but no current answers cover the integration of Git into Team Foundation Server/Service that I can find.
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How to change past commit to include a missed file?
I have committed a change and forgot to add a file to the change set. After other commits, I realized the file is now missing from a HEAD^4 commit.
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Can I specify multiple users for myself in .gitconfig?
... You can manually edit those config files with git config --edit and git config --global --edit. And in case you missed Abizern’s comment, a repository’s config file is at <repo-root>/.git/config.
– Rory O'Kane
Apr 25 '12 at 20:01
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]
I've googled endlessly for a method of getting a complete (and daily updated) list of all Yahoo ticker symbols available through http://finance.yahoo.com
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setup.py examples?
...ackages on the Python Package Index. Just download the tarball, unpack it, and have a look at the setup.py file. Or even better, only bother looking through packages that list a public source code repository such as one hosted on GitHub or BitBucket. You're bound to run into one on the front page.
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Find the max of two or more columns with pandas
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You can get the maximum like this:
>>> import pandas as pd
>>> df = pd.DataFrame({"A": [1,2,3], "B": [-2, 8, 1]})
>>> df
A B
0 1 -2
1 2 8
2 3 1
>>> df[["A", "B"]]
A B
0 1 -2
1 2 8
2 3 1
>>> df[["A", "B"]].max(axis=1)
0...
Blocks and yields in Ruby
I am trying to understand blocks and yield and how they work in Ruby.
10 Answers
10
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How to use Git and Dropbox together effectively?
Is it possible to use Git and Dropbox together effectively?
20 Answers
20
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Can Protractor and Karma be used together?
...://github.com/angular/protractor/issues/9#issuecomment-19927049
Protractor and Karma should not be used together; instead they provide separate systems for running tests. Protractor and Karma cover different aspects of testing - Karma is intended mostly for unit tests, while Protractor should be use...