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Single Line Nested For Loops
Wrote this function in python that transposes a matrix:
5 Answers
5
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Can grep show only words that match search pattern?
...-o option. Use the above. Else use the simpler to maintain version below.
Linux cross distribution safe answer
grep -oh "[[:alpha:]]*th[[:alpha:]]*" 'filename'
To summaries -oh outputs the regular expression matches to the file content (and not its filename), just like how you would expect regul...
What is the largest TCP/IP network port number allowable for IPv4?
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ephemeral port range vary by system. I am running ubuntu linux with 3.19.0-43-generic kernel. $ cat /proc/sys/net/ipv4/ip_local_port_range results in output 32768 61000. As to if one should or shouldn't use a port in one's system's ephemeral port range, I suspect most if not all ...
Error while installing json gem 'mkmf.rb can't find header files for ruby'
... I got the same error as well, and I'm using a fully updated version of Linux Mint. I don't think the OS verison is the issue.
– Andrew Faulkner
Jan 3 '16 at 11:04
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Expert R users, what's in your .Rprofile? [closed]
...s=4, show.signif.stars=FALSE)
options("pdfviewer"="okular") # on Linux, use okular as the pdf viewer
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How to find patterns across multiple lines using grep?
...ficient for this operation.
pcregrep which is found in most of the modern Linux systems can be used as
pcregrep -M 'abc.*(\n|.)*efg' test.txt
where -M, --multiline allow patterns to match more than one line
There is a newer pcre2grep also. Both are provided by the PCRE project.
pcre2grep is ...
How can I make Sublime Text the default editor for Git?
...al core.editor "'c:/program files/sublime text 3/subl.exe' -w"
Mac and Linux
Set Sublime as your editor for Git by typing the following command in the terminal:
git config --global core.editor "subl -n -w"
With this Git config, the new tab is opened in my editor. I edit my commit message, s...
How do I write good/correct package __init__.py files
...uide import statements without automatically importing modules
http://docs.python.org/tutorial/modules.html#importing-from-a-package
using __all__ and import * is redundant, only __all__ is needed
I think one of the most powerful reasons to use import * in an __init__.py to import packages is to b...
How do I debug Node.js applications?
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npm install -g profiler complains about missing python on windows 7. I tried to set python=C:\Python34\, but this gives a crash.
– Stepan Yakovenko
Sep 8 '14 at 12:45
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Eclipse hangs at the Android SDK Content Loader
...ses tab of the task manager
Open %USERPROFILE%/ on Windows or simply ~ on Linux/OS X (You can locate this folder from the Desktop)
Go to .android folder (This may be a hidden folder)
Delete the folder cache which is located inside .android folder
Delete the file ddms.cfg which is located inside .an...