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Why should text files end with a newline?
... hard advantage to this guideline when working on a terminal emulator: All Unix tools expect this convention and work with it. For instance, when concatenating files with cat, a file terminated by newline will have a different effect than one without:
$ more a.txt
foo
$ more b.txt
bar$ more c.txt
b...
Should developers have administrator permissions on their PC
...that administrative privileges are far less of an issue for development on unix-oid or mainframe systems than it is on Windows. On these platforms a user can do far more in their own domain without needing system-wide permissions. You will probably still want root or sudo access for developers, bu...
\r\n, \r and \n what is the difference between them? [duplicate]
...in Mac OS before X
\n = LF (Line Feed) → Used as a new line character in Unix/Mac OS X
\r\n = CR + LF → Used as a new line character in Windows
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Are table names in MySQL case sensitive?
...are not case sensitive in Windows, and case sensitive in most varieties of Unix.
In MySQL, databases correspond to directories within the data
directory. Each table within a database corresponds to at least one
file within the database directory. Consequently, the case sensitivity of the
u...
What does -D_XOPEN_SOURCE do/mean?
...s.
This will give you some extra functionality that exists on most recent UNIX/BSD/Linux systems, but probably doesn't exist on other systems such as Windows.
The numbers refer to different versions of the standard.
500 - X/Open 5, incorporating POSIX 1995
600 - X/Open 6, incorporating POSIX 200...
Including all the jars in a directory within the Java classpath
...Use *, not *.jar
Windows
java -cp "Test.jar;lib/*" my.package.MainClass
Unix
java -cp "Test.jar:lib/*" my.package.MainClass
This is similar to Windows, but uses : instead of ;. If you cannot use wildcards, bash allows the following syntax (where lib is the directory containing all the Java arch...
How do I clear the terminal screen in Haskell?
...a terminal that understands ANSI escape sequences (I believe every term in Unix/Linux systems) you can do it simply with:
clear = putStr "\ESC[2J"
The 2 clears the entire screen. You can use 0 or 1 respectively if you want to clear from the cursor to end of screen or from cursor to the beginning ...
Powershell equivalent of bash ampersand (&) for forking/running background processes
... Glad I found this answer. I was looking for the equivalent of a Unix fork-twice mechanism. To me it seems that something started with Start-Job will be killed when the PS shell exits. In contrast it seems that something started with Start-Process will continue to run after the PS shell ex...
Difference between Python datetime vs time modules
...
the time module is principally for working with unix time stamps; expressed as a floating point number taken to be seconds since the unix epoch. the datetime module can support many of the same operations, but provides a more object oriented set of types, and also has som...
How to add NERDTree to your .vimrc
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Are you on a Windows or unix-y system?
If you're on a unix-y system you put plugins in ~/.vim/plugin. Here's what my plugin directory looks like:
$ ls ~/.vim/plugin
NERD_tree.vim scratch.vim scratchfind.vim
After that it starts working right a...