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Find the IP address of the client in an SSH session
...
Check if there is an environment variable called:
$SSH_CLIENT
OR
$SSH_CONNECTION
(or any other environment variables) which gets set when the user logs in. Then process it using the user login script.
Extract the IP:
$ echo $SSH_CLIENT | awk '{ print $1}'
1.2...
How to format strings using printf() to get equal length in the output?
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printf allows formatting with width specifiers. e.g.
printf( "%-30s %s\n", "Starting initialization...", "Ok." );
You would use a negative width specifier to indicate left-justification because the default is to use right-justif...
How to uninstall Jenkins?
...y hint anywhere. So how one is supposed to do that, in general and specifically on Mac?
8 Answers
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Get current folder path
... that program (double-clicking on the .exe) I want the program to process all the files within the current folder where the exe file exists . How can the program determine the path in which it is currently executing?
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jQuery get html of container including the container itself
...wrap the container in a dummy P tag you will get the container HTML also.
All you need to do is
var x = $('#container').wrap('<p/>').parent().html();
Check working example at http://jsfiddle.net/rzfPP/68/
To unwrap()the <p> tag when done, you can add
$('#container').unwrap();
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unix diff side-to-side results?
...ifferences between similar files without getting in the way. This is especially helpful for identifying and understanding small changes within existing lines.
Instead of trying to be a diff replacement for all circumstances, the goal of icdiff is to be a tool you can reach for to get a better pictur...
Force an Android activity to always use landscape mode
...d change
super.onConfigurationChanged(newConfig);
}
The author specifically put a comment to ignore any keyboard or orientation changes.
If you want to change this, you can go back to the AndroidManifest.xml file shown above, and change the line to:
<activity android:screenOrientation="se...
Difference between spring @Controller and @RestController annotation
... I think @RestController also converts the response to JSON/XML automatically.
– arnabkaycee
Oct 21 '16 at 13:05
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MySQL Conditional Insert
... AND item = 456)
In this, dual is a table with one row only (found originally in Oracle, now in mysql too). The logic is that the SELECT statement generates a single row of data with the required values, but only when the values are not already found.
Alternatively, look at the MERGE statement.
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How do I convert a numpy array to (and display) an image?
...good to know: If you want to display grayscale images, it is advisable to call plt.gray() once in your code to switch all following graphs to grayscale. Not what the OP wants but good to know nevertheless.
– Cerno
Feb 28 '17 at 12:21
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