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How can I open multiple files using “with open” in Python?
...opinion, are more straightforward to deal with.
Let's say you have inFile.txt, and want to write it into two outFile's simultaneously.
with open("inFile.txt", 'r') as fr:
with open("outFile1.txt", 'w') as fw1:
with open("outFile2.txt", 'w') as fw2:
for line in fr.readlines(...
Determine the number of lines within a text file
...efficiency and conciseness with:
var lineCount = File.ReadLines(@"C:\file.txt").Count();
Original Answer
If you're not too bothered about efficiency, you can simply write:
var lineCount = File.ReadAllLines(@"C:\file.txt").Length;
For a more efficient method you could do:
var lineCount = 0;...
Fastest way to check if a file exist using standard C++/C++11/C?
...olution will be to use:
std::experimental::filesystem::exists("helloworld.txt");
and since C++17, only:
std::filesystem::exists("helloworld.txt");
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sed edit file in place
... the better solution would be to use perl:
perl -pi -e 's/foo/bar/g' file.txt
Although this does create a temporary file, it replaces the original because an empty in place suffix/extension has been supplied.
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Get encoding of a file in Windows
... ASCII C program text, with CRLF line terminators
Precision.txt; ASCII text, with CRLF line terminators
Release; directory
Speed.txt; ASCII text, with CRLF line terminators
SquareRoot.sdf; data
Square...
How to get the first line of a file in a bash script?
...t list of your source file into your target file.
echo $(head -n 1 source.txt) > target.txt
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PreparedStatement IN clause alternatives?
...iew looks like:
create or replace view in_list
as
select
trim( substr (txt,
instr (txt, ',', 1, level ) + 1,
instr (txt, ',', 1, level+1)
- instr (txt, ',', 1, level) -1 ) ) as token
from (select ','||aux_in_list.getpayload||',' txt from dual)
connect by lev...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...03"`
The date/time information from a reference file:
date.exe -r c:\file.txt +"The timestamp of file.txt is: %Y-%m-%d %H:%M:%S"
Using it in a CMD script to get year, month, day, time information:
for /f "tokens=1,2,3,4,5,6* delims=," %%i in ('C:\Tools\etc\date.exe +"%%y,%%m,%%d,%%H,%%M,%%S"') do...
Python: How to get stdout after running os.system? [duplicate]
...
import os
batcmd = 'dir'
result_code = os.system(batcmd + ' > output.txt')
if os.path.exists('output.txt'):
fp = open('output.txt', "r")
output = fp.read()
fp.close()
os.remove('output.txt')
print(output)
...
rsync: how can I configure it to create target directory on server?
...hat contains them then you would do:
rsync -rvv /path/to/data/myappdata/*.txt user@host:/remote/path/to/data/myappdata/
and it will create the myappdata directory for you on the remote machine to place your files in. Again, the data/ directory must exist on the remote machine.
Incidentally, my u...