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I don't understand -Wl,-rpath -Wl,

... between option or argument while passing stuff to the linker, it's just a string. So the second -Wl is redundant! Thanks :) – Blub Jul 3 '11 at 10:55 29 ...
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How to vertically center a container in Bootstrap?

...rial, sans-serif; } WORKING DEMO. Also, to prevent unexpected issues in extra small screens, you can reset the height of the pseudo-element to auto or 0 or change its display type to none if needed so: @media (max-width: 768px) { .vertical-center:before { height: auto; /* Or */ di...
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How to ALTER multiple columns at once in SQL Server

... of the columns in your table to the same datatype (such as expanding a VARCHAR field from 50 to 100 chars), you can generate all the statements automatically using the query below. This technique is also useful if you want to replace the same character in multiple fields (such as removing \t from a...
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Python nonlocal statement

...eavily indented when defining inner functions and ends up violating the 79 chars PEP8 recommendation. Any way to get around this problem? Can an inner function somehow be placed outside the outer function? I know the question sounds stupid, but I'm earnest. – tommy.carstensen ...
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ActiveRecord: size vs count

...many association, size will use the cached count directly, and not make an extra query at all. class Image < ActiveRecord::Base belongs_to :product, counter_cache: true end class Product < ActiveRecord::Base has_many :images end > product = Product.first # query, load product into m...
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Are multiple `.gitignore`s frowned on?

...ability to have multiple .gitignore files is very useful is if you want an extra directory in your working copy that you never intend to commit. Just put a 1-byte .gitignore (containing just a single asterisk) in that directory and it will never show up in git status etc. ...
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What is DOCTYPE?

... In HTML (including XHTML) as used on web pages, DOCTYPE is a string that triggers one of a few browser modes (quirks mode, standards mode, almost standards mode), depending on the exact spelling of the DOCTYPE. You want to use it to select a browser mode that best suits your page. For...
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How to align checkboxes and their labels consistently cross-browsers

...ght on the checkbox and then overflow: hidden for some reason cuts off the extra space and allows IE's positioning to act very similarly to Safari and Firefox. Depending on your text sizing, you'll no doubt need to adjust the relative positioning, width, height, and so forth to get things looking ri...
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Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?

... query is stuck, there is a problem somewhere : in your query (misplaced char, cartesian product, ...) very numerous records to edit complex joins or tests (MD5, substrings, LIKE %...%, etc.) data structure problem foreign key model (chain/loop locking) misindexed data As @syedrakib said, it wor...
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What is the best practice for dealing with passwords in git repositories?

...ld have. Often config values can be non obvious, like database connection strings and similar things. share | improve this answer | follow | ...