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How to list running screen sessions?
...var/run/screen/S-root/ | grep "NamingConvention". Screens save in the <pid>.<screen_name> format. This is useful for bash scripts. So if you have a screen with name 0000.NamingConvention it'll literally just return the name of the screens you're looking for in an easy to parse format.
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Add EBS to Ubuntu EC2 Instance
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Since this is a new volume, you need to format the EBS volume (block device) with a file system between step 1 and step 2. So the entire process with your sample mount point is:
Create EBS volume.
Attach EBS volume to /dev/sdf (EC2's exter...
jQuery Set Select Index
... Select Last Item
$("#select option:last").remove();
# Replace item with new one
$("#select option:eq(1)").replaceWith("<option value='2'>new option</option>");
# Remove an item
$("#select option:eq(0)").remove();
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What's invokedynamic and how do I use it?
I keep hearing about all the new cool features that are being added to the JVM and one of those cool features is invokedynamic. I would like to know what it is and how does it make reflective programming in Java easier or better?
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How do I check if a Sql server string is null or empty
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I couldn't decide if I should upvote your answer or unclefofa's, since he seems to have answered first, but his answer has been edited after you answered. I ended upvoting both.
– Zecc
Mar 22 '11 at 1...
How to configure slf4j-simple
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How to change file encoding in NetBeans?
...u can see the encoding of the open file, and from there you can define its new encoding.
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Use of def, val, and var in scala
...ly executed. I found that this happens because I used def in def person = new Person("Kumar",12) . If I use var or val the output is 20 . I understand the default is val in scala. This:
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How to use ScrollView in Android?
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Just make the top-level layout a ScrollView:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<TableLayout
android:layout_width="match_par...
Strange SQLAlchemy error message: TypeError: 'dict' object does not support indexing
...p:
c.execute("SELECT * FROM t WHERE a = %s")
In other words, if you provide parameter (%s) in query, but you forget to add query params. In this case error message is very misleading.
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