大约有 45,000 项符合查询结果（耗时：0.0680秒） [XML]
How to check if running as root in a bash script
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I know that from the terminal, when I forget to prefix something with sudo I can simply type sudo !! and it does the work for me, rather than pressing the UP arrow, going to the beginning of the line, and adding sudo by hand. N...
Password masking console application
... @Nadeem - The first \b moves the cursor back one position (now underneath the last * char. The [space] character "prints over" the asterisk, but also moves the cursor one character forward again, so the last \b moves the cursor back to where the last * used to be! (Phew - Hope that...
Change select box option background color
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I took away the rgba option and seems to use black now which will do :)
– ngplayground
Oct 11 '12 at 9:33
5
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How do you loop in a Windows batch file?
...aiezza, I second your opinion. I'm fighting with these bloody loops right now, working completely unexpectedly, and I've no idea what is controlling anything looking at the output. Horrid stuff. Useful, but horrid.
– RockDoctor
Aug 19 '19 at 23:57
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Format a number as 2.5K if a thousand or more, otherwise 900
... / 1000).toFixed(1).replace(/\.0$/, '') + 'K';
}
return num;
}
now nFormatter(33000) = 33K
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Swift compiler segmentation fault when building
...ebugger.swift. Repeat
You get a segfault in SegFaultDebugger.swift: Great! Now use binary search to pin the segfault down to a specific method until you can figure out what construct is causing it.
You get meaningful compiler errors: Great! Fix the errors. Once everything compiles, move your methods...
Django: Get an object form the DB, or 'None' if nothing matches
... = models.CharField(max_length=255)
objects = GetOrNoneManager()
And now I can do this:
bob_or_none = Person.objects.get_or_none(name='Bob')
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How to show multiline text in a table cell
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I'm in a situation now where white-space: pre; is being ignored when applied in a <td> tag. Using <pre></pre> to wrap our content works fine, but due to the use of this table (exporting to excel), large #s of columns and rows ...
Python: json.loads returns items prefixing with 'u'
...ng a JSON encoded string form Obj-C, and I am decoding a dummy string (for now) like the code below. My output comes out with character 'u' prefixing each item:
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Concatenate multiple files but include filename as section headers
... to concatenate a number of text files into one large file in terminal. I know I can do this using the cat command. However, I would like the filename of each file to precede the "data dump" for that file. Anyone know how to do this?
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