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Using git commit -a with vim
...he file and exit vim. This is also easier for some people as it's the same key pressed twice.
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How to list running screen sessions?
...tmp 96 Mar 1 2005 ..
This is a rather brilliantly Unixy use of Unix Sockets wrapped in filesystem permissions to handle security, state, and streams.
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How to set a default entity property value with Hibernate
...Hibernate doesn't include columns with null values on insert. Otherwise talking about default is irrelevant.
But if you don't want database default value, but simply a default value in your Java code, just initialize your variable like that - private Integer myColumn = 100;
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Selecting multiple columns in a pandas dataframe
I have data in different columns but I don't know how to extract it to save it in another variable.
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Eclipse's Ctrl+click in Visual Studio?
After working for a few days with Eclipse Java I totally got addicted to pressing Ctrl and clicking on an identifier to go to its definition. Since then I've been looking for a way to achieve this in Visual Studio as well.
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Git Ignores and Maven targets
Anyone know if it is possible to ignore all the instances of a particular directory in a file structure managed by git.
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Can anyone explain what JSONP is, in layman terms? [duplicate]
I know JSONP is JSON with padding.
4 Answers
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Why does 2 mod 4 = 2?
I'm embarrassed to ask such a simple question. My term does not start for two more weeks so I can't ask a professor, and the suspense would kill me.
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bash: Bad Substitution
...lt shell (/bin/sh) under Ubuntu points to dash, not bash.
me@pc:~$ readlink -f $(which sh)
/bin/dash
So if you chmod +x your_script_file.sh and then run it with ./your_script_file.sh, or if you run it with bash your_script_file.sh, it should work fine.
Running it with sh your_script_file.sh will...
How do I remove the old history from a git repository?
I'm afraid I couldn't find anything quite like this particular scenario.
11 Answers
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