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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
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You can use tr to convert from DOS to Unix; however, you can only do this safely if CR appears in your file only as the first byte of a CRLF byte pair. This is usually the case. You then use:
tr -d '\015' <DOS-file >UNIX-file
Note that the ...
What does gcc's ffast-math actually do?
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@Andrey: For this example, you go from 7 multiplies down to 3.
– Mysticial
Sep 14 '11 at 17:55
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Reading specific lines only
...-like object thefile (leaving up to the caller whether it should be opened from a disk file, or via e.g a socket, or other file-like stream) and a set of zero-based line indices whatlines, and returns a list, with low memory footprint and reasonable speed. If the number of lines to be returned is h...
How to keep environment variables when using sudo
...t HTTP_PROXY=foof
$ sudo -E bash -c 'echo $HTTP_PROXY'
Here is the quote from the man page:
-E, --preserve-env
Indicates to the security policy that the user wishes to preserve their
existing environment variables. The security policy may return an error
if...
Running a cron job on Linux every six hours
...out
0 */6 * * * /path/to/mycommand
This means every sixth hour starting from 0, i.e. at hour 0, 6, 12 and 18 which you could write as
0 0,6,12,18 * * * /path/to/mycommand
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Make an HTTP request with android
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Here is an article from the official android developer blog on AsyncTask: android-developers.blogspot.com/2010/07/…
– Austyn Mahoney
Aug 17 '10 at 21:44
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Request is not available in this context
...or or switching to the Classic mode unless there's no way to move the code from the Start to BeginRequest. that should be doable for the vast majority of your cases.
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Force Git to always choose the newer version during a merge?
...the version of the branch being merged, using git merge branch -X theirs.
From man git-merge:
ours:
This option forces conflicting hunks to be auto-resolved cleanly by favoring our version. Changes from the other tree that do not
conflict with our side are reflected to the merge result. ...
Design RESTful query API with a long list of query parameters [closed]
... POST endpoint is not where the resource might normally be found.
Quoting from RFC 2616 (with irrelevant parts omitted, and relevant parts highlighted):
9.5 POST
The POST method is used to request that the origin server accept the
entity enclosed in the request as a new subordinate of th...
Set Page title using UI-Router
...o $state and $stateParams to the $rootScope
// so that you can access them from any scope within your applications.
// For example, <li ng-class="{ active: $state.includes('contacts.list') }">
// will set the <li> to active whenever 'contacts.list' or one of its
// decendents is active...