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Eclipse: have the same file open in two editors?
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Open your file and then Window->New Editor (Note: in newer versions it will be called New Window)
Then, click on its tab and drag it somewhere else to have two editors of the same file
Update: as mentioned by moschlar, From version 4.4...
How to set environment variable for everyone under my linux system?
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man 8 pam_env
man 5 pam_env.conf
If all login services use PAM, and all login services have session required pam_env.so in their respective /etc/pam.d/* configuration files, then all login sessions will have some environment variables set as specified in pam_env's configuration file.
On ...
gdb fails with “Unable to find Mach task port for process-id” error
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In Snow Leopard and later Mac OS versions, it isn't enough to codesign the gdb executable.
You have to follow this guide to make it work: http://www.opensource.apple.com/source/lldb/lldb-69/docs/code-signing.txt
The guide explains how to d...
How to re-raise an exception in nested try/except blocks?
... produced will include an additional notice that SomeError occurred while handling AlsoFailsError (because of raise e being inside except AlsoFailsError). This is misleading because what actually happened is the other way around - we encountered AlsoFailsError, and handled it, while trying to recove...
Access mysql remote database from command line
...er with Rackspace. I want to access the database from my local machine command line.
17 Answers
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Python argparse: default value or specified value
...ngs? I have a dilemma with differentiation of "" (empty string as default) and "" (empty string as entered by user). In the code for now I'm using the default and since I need to do some ops, I have something like this self.foo = (args.bar or some_else_source).upper(). It will break on None object A...
Executing multiple commands from a Windows cmd script
...form several tasks in series.
However, it always stops after the first command in the script.
8 Answers
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UPDATE multiple tables in MySQL using LEFT JOIN
I have two tables, and want to update fields in T1 for all rows in a LEFT JOIN.
5 Answers
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Button Click event fires when pressing Enter key in different input (no forms)
This logic is firing when pressing "Enter" in the "Amount" input, and I don't believe it should (it doesn't in Chrome). How can I prevent this, and if not prevent it in IE, handle it so that the logic in the click event does not fire.
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HTML 5: Is it , , or ?
...atibility with XHTML; to make it possible to write the same code as XHTML, and have it also work as HTML. Some systems that generate HTML may be based on XML generators, and thus do not have the ability to output just a bare <br> tag; if you're using such a system, it's fine to use <br/>...