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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
To add a new pair to Hash I do:
14 Answers
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How can you check which options vim was compiled with?
I'd like to know which compilation options were used for my Vim binary. Is there any way to query this?
3 Answers
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How can I negate the return-value of a process?
I'm looking for a simple, but cross-platform negate -process that negates the value a process returns. It should map 0 to some value != 0 and any value != 0 to 0, i.e. the following command should return "yes, nonexistingpath doesn't exist":
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Free space in a CMD shell
Is there a way to get the amount of free diskspace of a disk or a folder in a CMD
without having to install some thirdparty applications?
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cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...息时，EAX中的值必须小于或等于该值。
mov eax, 80000000h
cpuid
执行完CPUID指令后，EAX中返回的值就是返回扩展信息时，功能代码的最大值，在执行CPUID指令要求返回扩展信息时，EAX中的值必须小于或等于该值。
由于很...
How do I bind a WPF DataGrid to a variable number of columns?
My WPF application generates sets of data which may have a different number of columns each time. Included in the output is a description of each column that will be used to apply formatting. A simplified version of the output might be something like:
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How do you normalize a file path in Bash?
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if you're wanting to chomp part of a filename from the path, "dirname" and "basename" are your friends, and "realpath" is handy too.
dirname /foo/bar/baz
# /foo/bar
basename /foo/bar/baz
# baz
dirname $( dirname /foo/bar/baz )
# /foo
realp...
Position of least significant bit that is set
I am looking for an efficient way to determine the position of the least significant bit that is set in an integer, e.g. for 0x0FF0 it would be 4.
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Backup/Restore a dockerized PostgreSQL database
I'm trying to backup/restore a PostgreSQL database as is explained on the Docker website, but the data is not restored.
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Accessing an SQLite Database in Swift
I'm looking for a way to access an SQLite database in my app with Swift code.
12 Answers
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