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How can I run PowerShell with the .NET 4 runtime?
... 4.0, you can change the configuration ($psHome\powershell_ise.exe.config) file to have a chunk like this:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<startup>
<supportedRuntime version="v4.0.30319" />
</startup>
</configuration>
You c...
Linux: copy and create destination dir if it does not exist
...
mkdir -p "$d" && cp file "$d"
(there's no such option for cp).
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package R does not exist
...classes. I was getting this error attempting to access it from other class files.
– Joe Lapp
Dec 16 '15 at 23:32
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Quickly reading very large tables as dataframes
...from the tidyverse package vroom for importing data from csv/tab-delimited files directly into an R tibble. See Hector's answer.
Using fread in data.table for importing data from csv/tab-delimited files directly into R. See mnel's answer.
Using read_table in readr (on CRAN from April 2015). This ...
How do I create a nice-looking DMG for Mac OS X using command-line tools?
...heViewOptions to 72
set background picture of theViewOptions to file ".background:'${backgroundPictureName}'"
make new alias file at container window to POSIX file "/Applications" with properties {name:"Applications"}
set position of item "'${applicationName}'" of co...
How does Hadoop process records split across block boundaries?
...he splits are handled by the client by InputFormat.getSplits, so a look at FileInputFormat gives the following info:
For each input file, get the file length, the block size and calculate the split size as max(minSize, min(maxSize, blockSize)) where maxSize corresponds to mapred.max.split.size and...
What is the purpose of Serialization in Java?
..., rather than hold onto the giant object in memory, just cache it out to a file via serialization, and read it in later when it's needed.
Cross JVM Synchronization: Serialization works across different JVMs that may be running on different architectures.
...
Unignore subdirectories of ignored directories in Git
...tation:
An optional prefix "!" which negates the pattern; any matching file
excluded by a previous pattern will become included again. It is not
possible to re-include a file if a parent directory of that file is
excluded. Git doesn’t list excluded directories for performance
reasons, ...
How can I tell if a library was compiled with -g?
...n Linux, use objdump --debugging. There should be an entry for each object file in the library. For object files without debugging symbols, you'll see something like:
objdump --debugging libvoidincr.a
In archive libvoidincr.a:
voidincr.o: file format elf64-x86-64
If there are debugging symb...
How do I pull files from remote without overwriting local files?
..."override" what's in the remote, but, oh, man, if someone has modified the files in the remote repo in some different way, and you just ignore their changes and try to "force" your own changes without even looking at possible conflicts, well, I weep for you (and your coworkers) ;-)
That said, thoug...