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How to delete duplicate lines in a file without sorting it in Unix?
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awk '!seen[$0]++' file.txt
seen is an associative-array that Awk will pass every line of the file to. If a line isn't in the array then seen[$0] will evaluate to false. The ! is the logical NOT operator and will invert the false to true. Awk will ...
TCPServer TCP服务器扩展：在Android设备上创建TCP服务器 · App Inventor 2 中文网
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Recursive search and replace in text files on Mac and Linux
...or no backups.
The following should do:
LC_ALL=C find . -type f -name '*.txt' -exec sed -i '' s/this/that/ {} +
The -type f is just good practice; sed will complain if you give it a directory or so.
-exec is preferred over xargs; you needn't bother with -print0 or anything.
The {} + at the end me...
Print array to a file
.... Or return it directly when writing to file:
file_put_contents('filename.txt', print_r($b, true));
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pip install from git repo branch
...hub.com/adiralashiva8/robotframework-metrics@v3.1.4 into your requirements.txt and then install with pip install -r requirements.txt. This will install Tag v3.1.4 from master branch.
– Wlad
Aug 7 '19 at 14:21
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What should a Multipart HTTP request with multiple files look like? [duplicate]
...lt;/button>
</form>
Create files to upload:
echo 'Content of a.txt.' > a.txt
echo '<!DOCTYPE html><title>Content of a.html.</title>' > a.html
Run:
nc -l localhost 8000
Open the HTML on your browser, select the files and click on submit and check the terminal....
Retrieve a single file from a repository
...5Vy9I-wA%3D%3D' -O myfile.py
Curl example:
curl 'https://example.com/raw.txt' > savedFile.txt
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What are all the common ways to read a file in Ruby?
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You can read the file all at once:
content = File.readlines 'file.txt'
content.each_with_index{|line, i| puts "#{i+1}: #{line}"}
When the file is large, or may be large, it is usually better to process it line-by-line:
File.foreach( 'file.txt' ) do |line|
puts line
end
Sometimes you ...
LEGO EV3 机器人传感器面板 · App Inventor 2 中文网
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LEGO EV3 机器人传感器面板
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示例项目文件：
EV3 传感器介绍
硬件要求
传感器连接
App Inventor 组件设置
设计器界面
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How to scp in Python?
...an example of the scp.get() command: scp.get(r'/nfs_home/appers/xxxx/test2.txt', r'C:\Users\xxxx\Desktop\MR_Test')
– Chris Nielsen
Jan 14 '16 at 15:49
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