大约有 2,120 项符合查询结果（耗时：0.0132秒） [XML]
How to assign a Git SHA1's to a file without Git?
As I understand it when Git assigns a SHA1 hash to a file this SHA1 is unique to the file based on its contents.
12 Answer...
Markdown and image alignment
...
I like to be super lazy by using tables to align images with the vertical pipe (|) syntax. This is supported by some Markdown flavours (and is also supported by Textile if that floats your boat):
| I am text to the left |  |
or
|  | I am text t...
How do I specify new lines on Python, when writing on files?
...print without any arguments, it will output a blank line.
print
You can pipe the output to a file like this (considering your example):
f = open('out.txt', 'w')
print 'First line' >> f
print >> f
print 'Second line' >> f
f.close()
Not only is it OS-agnostic (without even havi...
Portable way to get file size (in bytes) in shell?
...
If I'm not mistaken, though, wc in a pipeline must read() the entire stream to count the bytes. The ls/awk solutions (and similar) use a system call to get the size, which should be linear time (versus O(size))
– jmtd
May ...
Need a simple explanation of the inject method
...) of inject represents a starting place, it could be 0 or 1000.
Inside the pipes you have two place holders |x, y|. x = what ever number you had inside the .inject('x'), and the secound represents each iteration of your object.
[1, 2, 3, 4].inject(5) { |result, element| result + element } # => ...
Find all packages installed with easy_install/pip?
...pts, whereas pip list will generate unexpected errors when being used with pipes.
– Dale Anderson
Jan 18 '17 at 19:54
2
...
I want to delete all bin and obj folders to force all projects to rebuild everything
...
You don't need the foreach - you should just be able to pipe gci straight into remove-item (i.e., gci -include bin,obj -recurse | remove-item -force -recurse)
– Chris J
Mar 16 '15 at 11:54
...
CURL alternative in Python
...urthermore if you wrap this in a script and run it from a terminal you can pipe the response string to 'mjson.tool' to enable pretty printing.
>> basicAuth.py | python -mjson.tool
One last thing to note, urllib2 only supports GET & POST requests.
If you need to use other HTTP verbs lik...
MongoDB and “joins” [duplicate]
...on is no longer correct. The new $lookup operator added to the aggregation pipeline is essentially identical to a left outer join:
https://docs.mongodb.org/master/reference/operator/aggregation/lookup/#pipe._S_lookup
From the docs:
{
$lookup:
{
from: <collection to join>,
...
Retrieve filename from file descriptor in C
...rs refer to files, and for those you'll see some odd text strings, such as pipe:[1538488]. Since all of the real filenames will be absolute paths, you can determine which these are easily enough. Further, as others have noted, files can have multiple hardlinks pointing to them - this will only repor...