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/bin/sh: pushd: not found
...anged by child processes. (A hypothetical pushd command might do the chdir(2) call and then start a new shell, but ... it wouldn't be very usable.) pushd is a shell builtin, just like cd.
So, either change your script to start with #!/bin/bash or store the current working directory in a variable, d...
Git/GitHub can't push to master
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244
GitHub doesn't support pushing over the Git protocol, which is indicated by your use of the UR...
What is the Invariant Culture?
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132
The invariant culture is a special culture which is useful because it will not change. The curre...
Drop unused factor levels in a subsetted data frame
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429
All you should have to do is to apply factor() to your variable again after subsetting:
> s...
Git ignore sub folders
...wildcards?
Solution/*/bin/Debug
Solution/*/bin/Release
With version 1.8.2 of git, you can also use the ** wildcard to match any level of subdirectories:
**/bin/Debug/
**/bin/Release/
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im...
Bytecode features not available in the Java language
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62
As far as I know there are no major features in the bytecodes supported by Java 6 that are not a...
select * vs select column
If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory?
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What are the differences between Rust's `String` and `str`?
... one can only handle it behind a pointer. This means that str most commonly2 appears as &str: a reference to some UTF-8 data, normally called a "string slice" or just a "slice". A slice is just a view onto some data, and that data can be anywhere, e.g.
In static storage: a string literal "foo" ...
Missing file warnings showing up after upgrade to Xcode 4
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