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how to use sed, awk, or gawk to print only what is matched?
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My sed (Mac OS X) didn't work with +. I tried * instead and I added p tag for printing match:
sed -n 's/^.*abc\([0-9]*\)xyz.*$/\1/p' example.txt
For matching at least one numeric character without +, I would use:
sed -n 's/^.*abc\([0...
Python locale error: unsupported locale setting
...8
en_US.utf8
en_ZA.utf8
en_ZM
en_ZM.utf8
en_ZW.utf8
it_CH.utf8
it_IT.utf8
POSIX
Note that if you want to set the locale to it_IT you must also specify the .utf8:
>>> import locale
>>> locale.setlocale(locale.LC_ALL, 'it_IT') # error!
Traceback (most recent call last):
File "...
Can Selenium Webdriver open browser windows silently in background?
...ring while working in a local environment. Any way to tell selenium or the OS (MAC) to open the windows in the background?
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Android - Pulling SQlite database android device
...ere and i can't find a real precise answer or a tutorial on how, if it is possible, to do this.
19 Answers
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How to identify server IP address in PHP
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No. On some shared hosts this returns ::1
– TheRealChx101
Aug 2 '14 at 6:18
3
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Sublime text 2 - find and replace globally ( all files and in all directories )
...e is Multiple Files search and replace.
Press ctrlshiftF (cmdshiftF on MacOS):
In the Where field you can also add filters to search only folders and files that you need. If nothing is set, the search is made on all files listed in the sidebar.
If you double click on a line of the search result...
Performing Breadth First Search recursively
...f thought exercise, or even a trick homework/interview question, but I suppose I could imagine some bizarre scenario where you're not allowed any heap space for some reason [some really bad custom memory manager? some bizarre runtime/OS issues?] while you still have access to the stack...)
Breadth-...
How do I run a Node.js application as its own process?
...temd, which means forever, monit, PM2, etc. are no longer necessary - your OS already handles these tasks.
Make a myapp.service file (replacing 'myapp' with your app's name, obviously):
[Unit]
Description=My app
[Service]
ExecStart=/var/www/myapp/app.js
Restart=always
User=nobody
# Note Debian/Ub...
What is “vectorization”?
...it processes (say) 4 elements of the array simultaneously N/4 times.
(I chose 4 because it's what modern hardware is most likely to directly support; the term "vectorization" is also used to describe a higher level software transformation where you might just abstract away the loop altogether and j...
Compiling a java program into an executable [duplicate]
...ers for your java application, each of them having their own behaviour: Choose your flavour!
Download: http://jsmooth.sourceforge.net/
2- JarToExe 1.8
Jar2Exe is a tool to convert jar files into exe files.
Following are the main features as describe in their website:
Can generate “Console”, ...