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Using scp to copy a file to Amazon EC2 instance?
...ey-pair.pem ec2-user@ec2-198-51-100-1.compute-1.amazonaws.com:~/SampleFile.txt ~/SampleFile2.txt
SampleFile.txt: It will be the path from your root directory(In my case, /home/ubuntu). in my case the file which I wanted to download was at /var/www
SampleFile2.txt: It will be path of your machine'...
Can I grep only the first n lines of a file?
...
The magic of pipes;
head -10 log.txt | grep <whatever>
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Can I force pip to reinstall the current version?
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If you want to reinstall packages specified in a requirements.txt file, without upgrading, so just reinstall the specific versions specified in the requirements.txt file:
pip install -r requirements.txt --ignore-installed
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read complete file without using loop in java
... file is small, you can read the whole data once:
File file = new File("a.txt");
FileInputStream fis = new FileInputStream(file);
byte[] data = new byte[(int) file.length()];
fis.read(data);
fis.close();
String str = new String(data, "UTF-8");
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Download File Using jQuery
...f you don't want search engines to index certain files, you can use robots.txt to tell web spiders not to access certain parts of your website.
If you rely only on javascript, then some users who browse without it won't be able to click your links.
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In C, how should I read a text file and print all strings
I have a text file named test.txt
7 Answers
7
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What is setup.py?
....py
│ └── internals.py
├── README
├── requirements.txt
└── setup.py
Then, you do the following in your setup.py script so that it can be installed on some machine:
from setuptools import setup
setup(
name='foo',
version='1.0',
description='A useful module...
Writing string to a file on a new line every time
... an additional function wl that does what you want:
fid = cfile('filename.txt', 'w')
fid.wl('appends newline charachter')
fid.wl('is written on a new line')
fid.close()
Maybe I am missing something like different newline characters (\n, \r, ...) or that the last line is also terminated with a new...
Get last n lines of a file, similar to tail
...the very file end with seek(0, 2)).:
eg: f = open('C:/.../../apache_logs.txt', 'rb')
def tail(f, lines=20):
total_lines_wanted = lines
BLOCK_SIZE = 1024
f.seek(0, 2)
block_end_byte = f.tell()
lines_to_go = total_lines_wanted
block_number = -1
blocks = []
while li...
Linux how to copy but not overwrite? [closed]
...existing file (overrides a previous -i option)
Example:
cp -n myoldfile.txt mycopiedfile.txt
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