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How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...'s (especially UNIX) by design allow a child process to inherit all File-descriptors (FD) from parents. Thus all the sockets (in UNIX like OS are also part of FD) that a process A listening to, can be listened by many more processes A1, A2, .. as long as they are related by parent-child relation to ...
How to re-sign the ipa file?
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It's really easy to do from the command line. I had a gist of a script for doing this. It has now been incorporated into the ipa_sign script in https://github.com/RichardBronosky/ota-tools which I use daily. If you have any questions about using these tools, don't hesitate to ask.
The hea...
What's the best way to send a signal to all members of a process group?
...ll a whole process tree. What is the best way to do this using any common scripting languages? I am looking for a simple solution.
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List files with certain extensions with ls and grep
...tar.gz,zip} directly in a shell it works, but when put this inside a shell script latest=$(ls -I '.done' -tr ${pkgprefix}.{tar.gz,zip} | tail -1) I got an error message: ls: cannot access 'bamtools*.{tar.gz,zip}': No such file or directory, any smarter guy can refined the answer.
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Replace comma with newline in sed on MacOS?
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This is the only solution that works in a sed script.
– Firstrock
May 12 '14 at 19:12
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importing pyspark in python shell
...efault, thus an import pyspark will fail at command line or in an executed script. You have to either a. run pyspark through spark-submit as intended or b. add $SPARK_HOME/python to $PYTHONPATH.
– kingledion
Oct 10 '19 at 16:10
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Comparing date part only without comparing time in JavaScript
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I'm still learning JavaScript, and the only way that I've found which works for me to compare two dates without the time is to use the setHours method of the Date object and set the hours, minutes, seconds and milliseconds to zero. Then compare the...
Can't find the 'libpq-fe.h header when trying to install pg gem
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If you then are required to have a javascript library installed... gem install 'execjs' and gem install 'therubyracer'
– Nick Woodhams
Apr 26 '12 at 10:30
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Import SQL file into mysql
...their own benefits in the results they display.
In the first approach, the script exits as soon as it encounters an error. And the better part, is that it tells you the exact line number in the source file where the error occurred. However, it ONLY displays errors. If it didn't encounter any errors,...
Compiling Java 7 code via Maven
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Check the mvn script in your maven installation to see how it's building the command. Perhaps you or someone else has hard-coded a JAVA_HOME in there and forgotten about it.
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