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When should we call System.exit in Java
...make use of your exit code? A script that called the application. Works in Windows, Unix and all other scriptable environments.
Why return a code? To say things like "I did not succeed", "The database did not answer".
To see how to get the value od an exit code and use it in a unix shell script or...
Batch file: Find if substring is in string (not in a file)
...TRUE) else (ECHO CASE FALSE)
This works great for dropping the output of windows commands into a boolean variable. Just replace the echo with the command you want to run. You can also string Findstr's together to further qualify a statement using pipes. E.G. for Service Control (SC.exe)
SC QU...
Can two applications listen to the same port?
...to distinct IP addresses none of which is INADDR_ANY, or unless you are on Windows, where the result is undefined.
– Marquis of Lorne
Jul 23 '13 at 1:07
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git working on two branches simultaneously
...main repo new $GIT_DIR/worktrees folder (so that work on any OS, including Windows).
Again, once you have cloned a repo (in a folder like /path/to/myrepo), you can add worktrees for different branches in different independent paths (/path/to/br1, /path/to/br2), while having those working trees link...
difference between css height : 100% vs height : auto
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A height of 100% for is, presumably, the height of your browser's inner window, because that is the height of its parent, the page. An auto height will be the minimum height of necessary to contain .
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How do I list all loaded assemblies?
...bugging or Debug > Attach to process)
While debugging, show the Modules window (Debug > Windows > Modules)
This gives details about each assembly, app domain and has a few options to load symbols (i.e. pdb files that contain debug information).
Using Process Explorer
If you want an ex...
Tricks to manage the available memory in an R session
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Isn't this only applicable to Windows?
– Christopher DuBois
Sep 19 '09 at 11:51
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Set cache-control for entire S3 bucket automatically (using bucket policies?)
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Anyone have a similar solution for use with window's S3Express?
– Joe
Jul 25 '17 at 21:14
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Configuring Git over SSH to login once
...l go through the details in case, like me, you also have a Cygwin or other windows environment where this most certainly is not done for you.
Start here: man ssh-agent.
There are various ways to automatically run the agent. As the man page explains, you can run it so that it is a parent of all you...
Search and replace in Vim across all the project files
... Its written in pure Perl, its fast, it has syntax highlighting, works on Windows and its friendlier to programmers than the traditional command line tools. Install it on Ubuntu with sudo apt-get install ack-grep.
xargs
Xargs is an old unix command line tool. It reads items from standard inpu...