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How to open files relative to home directory
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The shell (bash, zsh, etc) is responsible for wildcard expansion, so in your first example there's no shell, hence no expansion. Using the tilde to point to $HOME is a mere convention; indeed, if you look at the documentation for File.expand_path,...
Logging levels - Logback - rule-of-thumb to assign log levels
... (system start, stop) go here. "Session" lifecycle events (login, logout, etc.) go here. Significant boundary events should be considered as well (e.g. database calls, remote API calls). Typical business exceptions can go here (e.g. login failed due to bad credentials). Any other event you think ...
Calculate RSA key fingerprint
...files.
To find most public keys on Linux/Unix/OS X systems, run
$ find /etc/ssh /home/*/.ssh /Users/*/.ssh -name '*.pub' -o -name 'authorized_keys' -o -name 'known_hosts'
(If you want to see inside other users' homedirs, you'll have to be root or sudo.)
The ssh-add -l is very similar, but list...
Calendar Recurring/Repeating Events - Best Storage Method
...vals, such as every day, every n days, every week, every month every year, etc etc. This includes every Tuesday and Thursday type patterns as well, because they are stored separately as every week starting on a Tuesday and every week starting on a Thursday.
Assuming I have two tables, one called ev...
Why is Everyone Choosing JSON Over XML for jQuery? [closed]
...do even simple data structures in XML -- as elements, as attribute values, etc. Then you have to document it, write up XML Schema or Relax NG or some other crap... It's a mess.
XML may have its merits, but for basic data interchange, JSON is much more compact and direct. As a Python developer, ther...
What's the difference between a web site and a web application? [closed]
...ely gives information such as location, tuition rates, programs available, etc; it will likely have web applications that allow teachers to manage grades and course materials, applications for students to register for and withdraw from courses, etc.
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Is SQL syntax case sensitive?
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The SQL Keywords are case-insensitive (SELECT, FROM, WHERE, etc), but are often written in all caps. However in some setups table and column names are case-sensitive. MySQL has a configuration option to enable/disable it. Usually case-sensitive table and column names are the default o...
How do you create a read-only user in PostgreSQL?
...test versions of PostgreSQL, you can grant permissions on all tables/views/etc in the schema using a single command rather than having to type them one by one:
GRANT SELECT ON ALL TABLES IN SCHEMA public TO xxx;
This only affects tables that have already been created. More powerfully, you can aut...
Difference between CPPFLAGS and CXXFLAGS in GNU Make
...the CFLAGS flag get passed to C++ compile lines? Sometimes. Not always. Etc, etc, etc.
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How to handle button clicks using the XML onClick within Fragments
... could just do this:
Activity:
Fragment someFragment;
//...onCreate etc instantiating your fragments
public void myClickMethod(View v) {
someFragment.myClickMethod(v);
}
Fragment:
public void myClickMethod(View v) {
switch(v.getId()) {
// Just like you were doing
}
} ...