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Quick unix command to display specific lines in the middle of a file?
...two other solutions if you know the line number but nothing else (no grep possible):
Assuming you need lines 20 to 40,
sed -n '20,40p;41q' file_name
or
awk 'FNR>=20 && FNR<=40' file_name
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How do I fix the indentation of an entire file in Vi?
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@ArchimedesTrajano Mac OS's stock vim is very old, I recommend HomeBrew's version; it's much newer. I had some annoying issues with Mac's vim. Also, I heard that you should not mess with the built-in one, so don't try to update it yourself unless ...
How can I get the line number which threw exception?
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Simple way, use the Exception.ToString() function, it will return the line after the exception description.
You can also check the program debug database as it contains debug info/logs about the whole application.
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Best cross-browser method to capture CTRL+S with JQuery?
...would like to be able to hit Ctrl + S to save a form. Is there a good cross-browser way of capturing the Ctrl + S key combination and submit my form?
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Does free(ptr) where ptr is NULL corrupt memory?
...his is because some C runtimes (I for sure remember it was the case on PalmOS) would crash when freeing a NULL pointer.
But nowadays, I believe it's safe to assume free(NULL) is a nop as per instructed by the standard.
shar...
Import CSV to SQLite
...I did it.
Make/Convert csv file to be seperated by tabs (\t) AND not enclosed by any quotes (sqlite interprets quotes literally - says old docs)
Enter the sqlite shell of the db to which the data needs to be added
sqlite> .separator "\t" ---IMPORTANT! should be in double quotes
sqlite> .i...
How do you remove Subversion control for a folder?
...s\test , and it contains folders and files that were checked out from a repository that no longer exists. How do I get Subversion to stop tracking that folder and any of the subfolders and files?
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Windows can't find the file on subprocess.call()
...e alternative (more secure for external input) is to get the PATH from the os.environ and search it manually.
– asmeurer
Jul 10 '17 at 2:18
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How to uninstall Jenkins?
...robably very simple, but I can't find any hint anywhere. So how one is supposed to do that, in general and specifically on Mac?
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Save bitmap to location
...ressFormat.PNG, 100, out); // bmp is your Bitmap instance
// PNG is a lossless format, the compression factor (100) is ignored
} catch (IOException e) {
e.printStackTrace();
}
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impro...