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How can I replace a newline (\n) using sed?
...ns not to do it on the last line as there should be one final newline).
Finally the substitution replaces every newline with a space on the pattern space (which is the whole file).
Here is cross-platform compatible syntax which works with BSD and OS X's sed (as per @Benjie comment):
sed -e ':a' -...
Singletons vs. Application Context in Android?
Recalling this post enumerating several problems of using singletons
and having seen several examples of Android applications using singleton pattern, I wonder if it's a good idea to use Singletons instead of single instances shared through global application state (subclassing android.os.Applicat...
What is a Context Free Grammar?
...y and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are?
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How to take MySQL database backup using MySQL Workbench?
...ontains only Create Table Statements, not Insert into Table statements for all tables
ANS:
Select Skip Table Data(no-data) option
Select Start Export Option
Q.3) Backup file(.sql) contains only Insert into Table Statements, not Create Table statements for all tables
ANS:
Select Advance O...
PHP global in functions
...ngletons, registries, constants). You do not want to use them. A function call should not have to rely on anything outside, e.g.
function fn()
{
global $foo; // never ever use that
$a = SOME_CONSTANT // do not use that
$b = Foo::SOME_CONSTANT; // do not use that unl...
Where does PostgreSQL store the database?
...here the data directory is, use this query.
show data_directory;
To see all the run-time parameters, use
show all;
You can create tablespaces to store database objects in other parts of the filesystem. To see tablespaces, which might not be in that data directory, use this query.
SELECT * FRO...
Where can I find a list of scopes for Google's OAuth 2.0 API? [closed]
...service.
The Google OAuth2 playground, is another good source of info.
Finally if you're interested in tracking changes to the discovery documents or don't want to read all the docs, there is an interesting online implementation by Gerwin Sturm.
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Git, rewrite previous commit usernames and emails
...
This just made duplicates of all the commits with the email I wanted to change. Doesn't appear to rewrite history. @Olivier Verdier's solution worked for me.
– Jake Wilson
Nov 21 '17 at 16:10
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How to wrap text using CSS? [duplicate]
... great! i assume that the only "problem" here, is that you have to set manually the size of the container (100px in this example)
– ymz
Dec 26 '14 at 11:09
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How would one call std::forward on all arguments in a variadic function?
...mpiler I would do this with real variadic templates. How though, would I call std::forward on the arguments?
1 Answer
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