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How to base64 encode image in linux bash / shell
I'm trying to base64 encode an image in a shell script and put it into variable:
6 Answers
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
... - Topics or exchanges) , in such cases if you want to filter out messages based on topics (which are actually strings) , you definitely do not want create hash table for the million subscriptions with million topics . A better approach is store the topics in trie , so when filtering is done based o...
Kill a postgresql session/connection
...d <> pg_backend_pid()
-- don't kill the connections to other databases
AND datname = 'database_name'
;
Before executing this query, you have to REVOKE the CONNECT privileges to avoid new connections:
REVOKE CONNECT ON DATABASE dbname FROM PUBLIC, username;
If you're using P...
Overloading and overriding
...st
{
public override void getStuff(int id)
{
//base.getStuff(id);
//or - Get stuff new location
}
}
share
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Double vs. BigDecimal?
...g with prices you want to use BigDecimal. And if you store them in the database you want something similar.
– extraneon
Aug 5 '10 at 11:46
106
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Private virtual method in C++
...ly, a derived class's override of a virtual function will have to call the base class version. It can't if it's declared private:
class Base
{
private:
int m_data;
virtual void cleanup() { /*do something*/ }
protected:
Base(int idata): m_data (idata) {}
public:
int data() const { retur...
base64 encoded images in email signatures
... email clients. For email purposes be sure to read Shadow2531's answer.
Base-64 data is legal in an img tag and I believe your question is how to properly insert such an image tag.
You can use an online tool or a few lines of code to generate the base 64 string.
The syntax to source the image f...
Why does calling a method in my derived class call the base class method?
...m and create instances of your inherited classes and access them using the base class definition. In your example this would look like:
public abstract class Person
{
public abstract void ShowInfo();
}
public class Teacher : Person
{
public override void ShowInfo()
{
Console.Wr...
Smallest data URI image possible for a transparent image
...ds (in some browsers).
Shorter (but unstable - 74 bytes)
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
I would advise using the slightly longer and more stable version as follows:
⇊ Stable ⇊ (but slightly longer - 78 bytes)
data:image/gif;base64,R0lGODlhAQABAI...
Why is the apt-get function not working in the terminal on Mac OS X v10.9 (Mavericks)?
...ystems use different programs. apt and its derivatives are used on Debian based linux systems. Red Hat-ish Linux systems use rpm (or at least they did many, many, years ago). yum is also a package manager for RedHat based systems.
Alpine based systems use apk.
Warning
As of 25 April 2016, homebrew...