大约有 48,000 项符合查询结果（耗时：0.1530秒） [XML]
sh: 0: getcwd() failed: No such file or directory on cited drive
... can happen with symlinks sometimes. If you experience this issue and you know you are in an existing directory, but your symlink may have changed, you can use this command:
cd $(pwd)
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impr...
How can I confirm a database is Oracle & what version it is using SQL?
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@Prokhozhii - We now use 19 so i can no longer confirm but I would appreciate it if you could provide additional explanation as select version from v$instance definitely works in Oracle 11 . See answer
String comparison in bash. [[: not found
... Happend to me because i ran the script with sh, lots for frustration. Now i just have to redo everything i undid before finding this answer.
– Louis Loudog Trottier
May 16 '18 at 5:01
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Get Month name from month number
...atInfo();
string strMonthName = mfi.GetMonthName(8).ToString(); //August
Now, get first three characters
string shortMonthName = strMonthName.Substring(0, 3); //Aug
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How do I get the RootViewController from a pushed controller?
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For all who are interested in a swift extension, this is what I'm using now:
extension UINavigationController {
var rootViewController : UIViewController? {
return self.viewControllers.first
}
}
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Printing the last column of a line in a file
...e column may not appear in the window that raw tail gives you. Unless you know it is going to appear with a certain frequency, it would be safer to awk '/A1/ {print $NF}' file | tail -n1.
– Mitchell Tracy
Feb 8 '19 at 16:28
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C compiler for Windows? [closed]
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There is now Visual Studio Code which is cross-platform, with more or less the same functionality.
– Dr_Zaszuś
May 16 '19 at 19:23
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How to get the parent dir location
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I know the OP knows about dirname. It isn't obvious to everyone that applying dirname to a directory yields the parent directory.
– Marcelo Cantos
May 12 '10 at 9:09
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Difference between array_push() and $array[] =
...e in that way there is no overhead of calling a function." don't have time now to see exactly what is behind it as the search term is bit confusing for search engines :)
– jnhghy - Alexandru Jantea
Jun 16 '17 at 14:29
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Assigning default values to shell variables with a single command in bash
... builtin to eat the expansion of the ${..} BUT leaving VARIABLE set. Until now I was doing this: VARIABLE="${VARIABLE:-DEFAULT_VALUE}" and feeling dorky for using VARIABLE twice.
– dino
Oct 6 '15 at 18:06
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