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How to remove the lines which appear on file B from another file A?
...contents in file1 not in file2, to file3. And then mv file3 file1 would finally clear redundant contents in file1.
– Spectral
Jul 17 '14 at 20:48
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How do I move forward and backward between commits in git?
...of the commit or a tag.
Explanation:
the command inside $() means: get all the commits between current HEAD and towards commit (excluding HEAD), and sort them in the precedence order (like in git log by default -- instead of the chronological order which is weirdly the default for rev-list), and...
Regular expression to find URLs within a string
...
It's 2017, and unicode domain names are all over the place. \w may not match international symbols (depends on regex engine), the range is needed instead: a-zA-Z0-9\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF.
– Michael Antipin
Aug...
“var” or no “var” in JavaScript's “for-in” loop?
...erties, so using the standard "for in" loop w/o the var statement will actually fail and return a ReferenceError.
– dkugappi
Jun 11 '13 at 15:01
2
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程序员才能听得懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...批程序员给隔离了。老邓接手以后，重构代码，出了个2.0版，为了开发速度，遗留了一堆BUG没处理。人们纷纷质疑：是不是核心构架太单一，双核会不会好点？
42、一程序员家的水管坏了，他打电话叫来一个水管工修理。 水...
SQL SELECT WHERE field contains words
...%'
OR column1 LIKE '%word2%'
OR column1 LIKE '%word3%'
If you need all words to be present, use this:
SELECT * FROM mytable
WHERE column1 LIKE '%word1%'
AND column1 LIKE '%word2%'
AND column1 LIKE '%word3%'
If you want something faster, you need to look into full text search, and this...
Can you animate a height change on a UITableViewCell when selected?
...
I found a REALLY SIMPLE solution to this as a side-effect to a UITableView I was working on.....
Store the cell height in a variable that reports the original height normally via the tableView: heightForRowAtIndexPath:, then when you wa...
How to search and replace text in a file?
...do this yourself instead. Redirecting sys.stdout isn't a great idea, especially if you're doing it without a try..finally like fileinput does. If an exception gets raised, your stdout might never get restored.
– craigds
Dec 18 '14 at 3:09
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Splitting string into multiple rows in Oracle
...ct 108 Name, 'test' Project, 'Err1, Err2, Err3' Error from dual
union all
select 109, 'test2', 'Err1' from dual
)
select distinct
t.name, t.project,
trim(regexp_substr(t.error, '[^,]+', 1, levels.column_value)) as error
from
temp t,
table(cast(multiset(select level from dual conne...
Move the most recent commit(s) to a new branch with Git
... checking out the branch you made. So how do the commits you removed magically show up in the new branch?
– Jonathan Dumaine
Aug 3 '10 at 18:28
143
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