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Remove the last line from a file in Bash
...sed.
MacOS:
On Mac OS X (as of 10.7.4), the equivalent of the sed -i command above is
sed -i '' -e '$ d' foo.txt
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Remove sensitive files and their commits from Git history
...ect on GitHub but it contains certain files with sensitive data (usernames and passwords, like /config/deploy.rb for capistrano).
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Convert a String In C++ To Upper Case
...it requires boost, or the title should be changed.
– Andrea
Nov 25 '15 at 11:53
5
This appears to...
iPhone 5 CSS media query
The iPhone 5 has a longer screen and it's not catching my website's mobile view. What are the new responsive design queries for the iPhone 5 and can I combine with existing iPhone queries?
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Jquery bind double click and single click separately
...uery that would allow me to differentiate between behavior on double click and single click?
14 Answers
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Select random row from a sqlite table
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Have a look at Selecting a Random Row from an SQLite Table
SELECT * FROM table ORDER BY RANDOM() LIMIT 1;
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Git Server Like GitHub? [closed]
... time Subversion user that is going to try Git. I have read some about it and understand the distributed nature - I can see a lot of the benefits.
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Check if all elements in a list are identical
...sions are that:
In checkEqual2 the content must be hashable.
checkEqual1 and checkEqual2 can use any iterators, but checkEqual3 must take a sequence input, typically concrete containers like a list or tuple.
checkEqual1 stops as soon as a difference is found.
Since checkEqual1 contains more Python...
MySQL, Check if a column exists in a table with SQL
... query that will check if a specific table in MySQL has a specific column, and if not — create it. Otherwise do nothing. This is really an easy procedure in any enterprise-class database, yet MySQL seems to be an exception.
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Delete an element from a dictionary
... del/assignment/etc. means you're going from constant time to linear time, and also using linear space. For small dicts, this is not a problem. But if you're planning to make lots of copies of large dicts, you probably want a different data structure, like a HAMT (as described in this answer).
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