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Efficiently test if a port is open on Linux?
... Linux:
netstat -lnt | awk '$6 == "LISTEN" && $4 ~ /\.445$/'
On Mac:
netstat -anp tcp | awk '$6 == "LISTEN" && $4 ~ /\.445$/'
This will output a list of processes listening on the port (445 in this example) or it will output nothing if the port is free.
...
iOS JavaScript bridge
...here isn't the same windowScriptObject property (and class) that exists on Mac OSX allowing complete communication between the two.
However, you can easily call from javascript custom-made URLs, like:
window.location = yourscheme://callfunction/parameter1/parameter2?parameter3=value
And intercep...
What is the difference between an int and a long in C++?
...ytes
Linux Intel 64 8 bytes
Linux IA-64 8 bytes
Mac OS X IA-32 4 bytes
Mac OS X Intel 64 8 bytes
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How do I solve the INSTALL_FAILED_DEXOPT error?
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Christ... again this happened to me after updating my mac OS. Doubling down on my reimbursement of that solution goto -> settings and run factory restore. Had to look up this question just to remember how I fixed it... thank god for history on stack overflow, and I was able ...
pip broke. how to fix DistributionNotFound error?
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I find this problem in my MacBook, the reason is because as @Stephan said, I use easy_install to install pip, and the mixture of both py package manage tools led to the pkg_resources.DistributionNotFound problem.
The resolve is:
easy_install --upgra...
Groovy Shell warning “Could not open/create prefs root node …”
...t Menu and type regedit into the search field.
Navigate to path HKEY_LOCAL_MACHINE\Software\JavaSoft (Windows 10 seems to now have this here: HKEY_LOCAL_MACHINE\Software\WOW6432Node\JavaSoft)
Right click on the JavaSoft folder and click on New -> Key
Name the new Key Prefs and everything should w...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
...tet-stream"},
{"cpio", "application/x-cpio"},
{"cpt", "application/mac-compactpro"},
{"csh", "application/x-csh"},
{"css", "text/css"},
{"dcr", "application/x-director"},
{"dif", "video/x-dv"},
{"dir", "application/x-director"},
{"djv", "image/vnd.djvu"},
{"djvu",...
How to fix a locale setting warning from Perl?
...y guess is you used ssh to connect to this older host from a newer desktop machine. It's common for /etc/ssh/sshd_config to contain
AcceptEnv LANG LC_*
which allows clients to propagate the values of those environment variables into new sessions.
The warning gives you a hint about how to squelch...
How can I use a carriage return in a HTML tooltip?
...nda standard linefeed across protocols and tools), CR was only used by old Macs (and other obscure platforms) and seems out of place.
– Camilo Martin
Aug 30 '15 at 9:26
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Replace whole line containing a string using Sed
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on a mac use: sed -i '' '/TEXT_TO_BE_REPLACED/c\This line is removed by the admin.' /tmp/foo ; (when the first param is blank it edits in-file, otherwise creates a backup)
– AndreDurao
Apr 10...