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Bash continuation lines
...is creates two arguments to echo and you only want one, then let's look at string concatenation. In bash, placing two strings next to each other concatenate:
$ echo "continuation""lines"
continuationlines
So a continuation line without an indent is one way to break up a string:
$ echo "continua...
Find region from within an EC2 instance
...
Get pure string with only the region name: ec2-metadata --availability-zone | sed 's/placement: \(.*\).$/\1/'
– nahsh
Jun 6 '18 at 11:58
...
Can I run multiple programs in a Docker container?
... on the users on desktop. My application is simply a flask web application and mongo database. Normally I would install both in a VM and, forward a host port to the guest web app. I'd like to give Docker a try but I'm not sure how I'm meant to use more than one program. The documentations says there...
How to configure port for a Spring Boot application
...d the second command pass the property through the command line arguments (String... args in the main method). Moreover, if you run with java -Dserver.port=XXXX -jar <path/to/my/jar> --server.port=YYYY, YYYY takes precedence over XXXX, this is why Spring Boot Externalized Configuration is so c...
what's the correct way to send a file from REST web service to client?
...o my client. So far I've gotten the hang of how to send simple data types (strings, integers, etc) but sending a file is a different matter since there are so many file formats that I don't know where I should even begin. My REST service is made on Java and I'm using Jersey, I'm sending all the data...
How to get disk capacity and free space of remote computer
...UnmanagedType.Bool)]
public static extern bool GetDiskFreeSpaceEx(string lpDirectoryName,
out ulong lpFreeBytesAvailable,
out ulong lpTotalNumberOfBytes,
out ulong lpTotalNumberOfFreeBytes);
'@
$l_type = Add-Type -MemberDefinition $l_typeDefinitio...
Ruby: Can I write multi-line string with no concatenation?
...tual answers had it, I'm compiling them here:
str = 'this is a multi-line string'\
' using implicit concatenation'\
' to prevent spare \n\'s'
=> "this is a multi-line string using implicit concatenation to eliminate spare
\\n's"
As a bonus, here's a version using funny HEREDOC syntax (via...
Pick any kind of file via an Intent in Android
...y solution which works on Samsung and other devices:
public void openFile(String mimeType) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType(mimeType);
intent.addCategory(Intent.CATEGORY_OPENABLE);
// special intent for Samsung file manager
...
How do you change the server header returned by nginx?
... quick edit to the source and recompile. From Calomel.org:
The Server: string is the header which
is sent back to the client to tell
them what type of http server you are
running and possibly what version.
This string is used by places like
Alexia and Netcraft to collect
statistics a...
Set icon for Android application
... such:
<application android:icon="@drawable/icon_name" android:label="@string/app_name" >
....
</application>
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