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How to convert a string to lower case in Bash?
...cho "$a" | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# this also works:
$ sed -e 's/\(.*\)/\L\1/' <<< "$a"
hi all
Perl
$ echo "$a" | ...
What is SOA “in plain english”? [closed]
...ere, SOA there but I cannot understand exacly what it is and what is used for. Was it some simple concept and later evolved into something huge or what?
...
How to close Android application?
... in a helper class and then call it whenever the app needs to be killed. For example in the destroy method of the root activity (assuming that the app never kills this activity):
Also Android will not notify an application of the HOME key event, so you cannot close the application when the HOME ke...
When to use the different log levels
There are different ways to log messages, in order of fatality:
18 Answers
18
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Group vs role (Any real difference?)
...al difference between group and role? I've been trying to figure this out for some time now and the more information I read, the more I get the sense that this is brought up just to confuse people and there is no real difference. Both can do the other's job. I've always used a group to manage users ...
What's the difference between “Layers” and “Tiers”?
...
Logical layers are merely a way of
organizing your code. Typical layers
include Presentation, Business and
Data – the same as the traditional
3-tier model. But when we’re talking
about layers, we’re only talking about
logical organization of co...
Span inside anchor or anchor inside span or doesn't matter?
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BUT, I tend to only use a <span> inside an <a> if it's only for a part of the contents of the tag i.e.
<a href="#">some <span class="red">text</span></a>
Rather than:
<a href="#"><span class="red">some text</span></a>
Which should o...
Should I choose ActivePerl or Strawberry Perl for Windows? [duplicate]
...ut I'd like to try it out. I read about two rival distributions available for Windows platform (I guess there's just Perl on other OSes :).
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Reminder - \r\n or \n\r?
...
I'd use the word 'return' to remember, the r comes before the n.
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Android Min SDK Version vs. Target SDK Version
When it comes to developing applications for Android, what is the difference between Min and Target SDK version? Eclipse won't let me create a new project unless Min and Target versions are the same!
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