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Command-line Tool to find Java Heap Size and Memory Used (Linux)?
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This command shows the configured heap sizes in bytes.
java -XX:+PrintFlagsFinal -version | grep HeapSize
It works on Amazon AMI on EC2 as well.
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How to make HTML input tag only accept numerical values?
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how to delete backspace then?
– 6by3
Aug 30 '18 at 5:55
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Eclipse will not start and I haven't changed anything
...ked on eclipse and the loading screen only flashes and disappears followed by a message telling me to check the .log file. I've since restarted the pc multiple times, tried running it in safe mode and ran eclipse.exe -clean and nothing works.
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How can I get the current user's username in Bash?
...at all. Worse, it is just an environment variable, so it can be overridden by the user: USER=thisisnotmyname bash -c 'echo $USER' # prints thisisnotmyname
– sitaktif
Dec 17 '15 at 13:20
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Date query with ISODate in mongodb doesn't seem to work
...{"$gte": new Date("2013-10-01T00:00:00.000Z")}
})
or (following comments by @user3805045):
db.mycollection.find({
"dt" : {"$gte": ISODate("2013-10-01T00:00:00.000Z")}
})
ISODate may be also required to compare dates without time (noted by @MattMolnar).
According to Data Types in the mongo...
How to log PostgreSQL queries?
How to enable logging of all SQL executed by PostgreSQL 8.3?
10 Answers
10
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How to keep the spaces at the end and/or at the beginning of a String?
...hich means that you're relying on your xml string being html parsed (it is by default when used in text views). See w3schools.com/html/html_entities.asp
– greg7gkb
Oct 31 '14 at 21:00
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android:drawableLeft margin and/or padding
...ht to force the text and drawable inward towards the center of the button. By adjusting the left and right padding separately you can make very detailed adjustments to the layout.
Here's an example button that uses padding to push the text and icon closer together than they would be by default:
&l...
Getting the exception value in Python
...pt Exception, e:
print e.message
Output:
integer division or modulo by zero
args[0] might actually not be a message.
str(e) might return the string with surrounding quotes and possibly with the leading u if unicode:
'integer division or modulo by zero'
repr(e) gives the full exception r...
Recursive search and replace in text files on Mac and Linux
...One exception is when the maximal number of command-line arguments allowed by the OS is breached; in that case find will run more than one instance.)
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