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How to add pandas data to an existing csv file?
I want to know if it is possible to use the pandas to_csv() function to add a dataframe to an existing csv file. The csv file has the same structure as the loaded data.
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Command line to remove an environment variable from the OS level configuration
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Ah! What do you suppose the rational is for that?? I always avoid admin as much as possible - UNIX/BSD/Linux upbringing. Thanks a mil for the awesome diligence. +1
– caasjj
Apr 5 '16 at 20:36
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How to convert An NSInteger to an int?
...ore than a 32/64 bit int. (it will use the appropriate size based on what OS/platform you're running)
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Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
...from other executing processes written in any language the O/S supports.
Most Linux applications, regardless what language the bulk of the program is written in, depend on shell scripts and Bash has become the most common. Clicking an icon on the desktop usually runs a short Bash script. That scrip...
How to bundle a native library and a JNI library inside a JAR?
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It is possible to create a single JAR file with all dependencies including the native JNI libraries for one or more platforms. The basic mechanism is to use System.load(File) to load the library instead of the typical System.loadLib...
Is it OK to leave a channel open?
Is it OK to leave a Go channel open forever (never close the channel) if I never check for its state? Will it lead to memory leaks? Is the following code OK?
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Running a Haskell program on the Android OS
...e ndk gcc, this is a lot more involved process because GHC is not a true cross-compiler at the moment and you need to understand the build system what parts you need to change. Another option is NHC which can cross-compile to C, like GHC you need to build nhc targeting a C compiler, NHC does not hav...
Converting newline formatting from Mac to Windows
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In conclusion, simply replace every occurence of \n by \r\n.
Both unix2dos and dos2unix are not by default available on Mac OSX.
Fortunately, you can simply use Perl or sed to do the job:
sed -e 's/$/\r/' inputfile > outputfile # UNIX to DOS (adding CRs)
sed -e 's/\r$//' input...
How can I strip first X characters from string using sed?
...{var:5}
Are you sure bash is the shell executing your script?
Even the POSIX-compliant
var=${var#?????}
would be preferable to using an external process, although this requires you to hard-code the 5 in the form of a fixed-length pattern.
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Why is Linux called a monolithic kernel?
...ion, etc.) are a tight knit group sharing the same space. This directly opposes a microkernel.
A microkernel prefers an approach where core functionality is isolated from system services and device drivers (which are basically just system services). For instance, VFS (virtual file system) and block...