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Checking from shell script if a directory contains files
From a shell script, how do I check if a directory contains files?
26 Answers
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How to get Erlang's release version number from a shell?
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From the docs for erlang:system_info: As from OTP 17, the OTP release number corresponds to the major OTP version number. No erlang:system_info() argument gives the exact OTP version. See my answer below for an even uglier co...
How do I get Pyflakes to ignore a statement?
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If there only was a way to get this from some repo for EL6 :) - I guess I'll have to wrap this in a rpm myself.
– Kimvais
May 9 '12 at 4:54
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“CAUTION: provisional headers are shown” in Chrome debugger
... You see this message in the debugger whenever the resource was retrieved from the browser's cache without asking the server if the content has changed.
– Maor
Jun 5 '14 at 8:48
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How to convert R Markdown to PDF?
...g.,
render("input.Rmd", "pdf_document")
Command-line:
When I run render from the command-line (e.g., using a makefile), I sometimes have issues with pandoc not being found. Presumably, it is not on the search path.
The following answer explains how to add pandoc to the R environment.
So for exam...
Negative list index? [duplicate]
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Negative numbers mean that you count from the right instead of the left. So, list[-1] refers to the last element, list[-2] is the second-last, and so on.
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How can I strip the whitespace from Pandas DataFrame headers?
I am parsing data from an Excel file that has extra white space in some of the column headings.
3 Answers
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My pull request has been merged, what to do next?
I recently participated in a project from GitHub. I did the following:
2 Answers
2
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Can't create handler inside thread that has not called Looper.prepare()
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You're calling it from a worker thread. You need to call Toast.makeText() (and most other functions dealing with the UI) from within the main thread. You could use a handler, for example.
Look up Communicating with the UI Thread in the docume...
Get the (last part of) current directory name in C#
I need to get the last part of current directory, for example from /Users/smcho/filegen_from_directory/AIRPassthrough , I need to get AIRPassthrough .
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