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Convert absolute path into relative path given a current directory using Bash
...U coreutils 8.23 is the simplest, I think:
$ realpath --relative-to="$file1" "$file2"
For example:
$ realpath --relative-to=/usr/bin/nmap /tmp/testing
../../../tmp/testing
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Items in JSON object are out of order using “json.dumps”?
... to sort the keys:
>>> import json
>>> json.dumps({'a': 1, 'b': 2})
'{"b": 2, "a": 1}'
>>> json.dumps({'a': 1, 'b': 2}, sort_keys=True)
'{"a": 1, "b": 2}'
If you need a particular order; you could use collections.OrderedDict:
>>> from collections import Ordere...
汇编语言（王爽著）附书签 - 文档下载 - 清泛网 - 专注C/C++及内核技术
...的命令。
这是一本入门的汇编语言教材
关于内容：1、内容真的是做到了深入浅出（书是给人看的，别人看懂了才是最关键的）。2、有的地方看的出来是老师自己的感悟（不像其它国内大多数的书，就知道东抄一点西搬一点...
Sorting multiple keys with Unix sort
I have potentially large files that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.
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Get the last non-empty cell in a column in Google Sheets
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16 Answers
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SHA-1 fingerprint of keystore certificate
Is the method for getting a SHA-1 fingerprint the same as the method of getting the a fingerprint? Previously, I was running this command:
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Can hash tables really be O(1)?
It seems to be common knowledge that hash tables can achieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations that come to mind:
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'Must Override a Superclass Method' Errors after importing a project into Eclipse
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13 Answers
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Redirect Windows cmd stdout and stderr to a single file
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1111
You want:
dir > a.txt 2>&1
The syntax 2>&1 will redirect 2 (stderr) to 1 ...