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Convert absolute path into relative path given a current directory using Bash

... $2/$target from $1/$source source=$1 target=$2 common_part=$source # for now result="" # for now while [[ "${target#$common_part}" == "${target}" ]]; do # no match, means that candidate common part is not correct # go up one level (reduce common part) common_part="$(dirname $common_pa...
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How to remove/delete a large file from commit history in Git repository?

...ry. You can then use git gc to clean away the dead data: $ git gc --prune=now --aggressive The BFG is typically at least 10-50x faster than running git-filter-branch, and generally easier to use. Full disclosure: I'm the author of the BFG Repo-Cleaner. ...
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Remove directory from remote repository after adding them to .gitignore

...adding a directory that should be ignored. Everything works fine, but the (now ignored) directory stays on github. 8 Answer...
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github locks up mac terminal when using pull command

...a modal text editor, so you would need to: Press i to enter insert mode. Now you can type your message, as if you were in a normal (non-modal) text editor. Press esc to go back to command mode. Then type :w followed by enter to save. Finally :q followed by enter to quit. ...
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Force CloudFront distribution/file update

... As of March 19, Amazon now allows Cloudfront's cache TTL to be 0 seconds, thus you (theoretically) should never see stale objects. So if you have your assets in S3, you could simply go to AWS Web Panel => S3 => Edit Properties => Metadata,...
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Regular expression for floating point numbers

...tion.) That said, most regex engines (actually, all of them, as far as I know) would accept \.. Most likely, there's an issue with escaping. The Trouble with Escaping Some languages have built-in support for regexes, such as JavaScript. For those languages that don't, escaping can be a problem. ...
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When exactly is it leak safe to use (anonymous) inner classes?

...u are actually asking several questions at once. I'll do my best with the knowledge that I have to cover it and, hopefully, some others will join in to cover what I may miss. Nested Classes: Introduction As I'm not sure how comfortable you are with OOP in Java, this will hit a couple of basics. A ...
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Is there a destructor for Java?

...finalize only for sanity checking (i.e. if close has not been called do it now and log an error). There was a question that spawned in-depth discussion of finalize recently, so that should provide more depth if required... ...
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StringBuilder vs String concatenation in toString() in Java

...ion, it will be because it is not worth it. In 99% of cases, the compiler knows better which optimization is worth it, so as a rule of thumb the dev should not interfere. Of course, your situation may fall into the other 1%, but that can only be checked by (careful) benchmarking. ...
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How to implement onBackPressed() in Fragments?

...pBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE); } } Since now, we will work on our code BaseActivity and its fragments Create private listener on top of your class BaseActivity protected OnBackPressedListener onBackPressedListener; create method to set listener in BaseActivity pu...