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Force line-buffering of stdout when piping to tee
...he line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
6 Answers
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How to call a shell script from python code?
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With subprocess you can manage input/output/error pipes. It is also better when you have many arguments -- with os.command() you will have to create whole command line with escaping special characters, with subprocess there is simple list of arguments. But for simple tasks o...
How to create streams from string in Node.Js?
...ow
s.push('your text here');
s.push(null);
… after which you can freely pipe it or otherwise pass it to your intended consumer.
It's not as clean as the resumer one-liner, but it does avoid the extra dependency.
(Update: in v0.10.26 through v9.2.1 so far, a call to push directly from the REPL pro...
How to trick an application into thinking its stdout is a terminal, not a pipe
I'm trying to do the opposite of " Detect if stdin is a terminal or pipe? ".
9 Answers
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How to escape a pipe char in a code statement in a markdown table?
...e containing pieces of code in Markdown. It works fine except when I put a pipe char (i.e. | ) between the backtick (i.e. ` ) chars.
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How do I pipe or redirect the output of curl -v?
...s is still displayed on the console. Is there some other stream that I can pipe into grep to extract some data that I need?
– jonderry
Mar 25 '11 at 3:51
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Exec : display stdout “live”
...rocess.stdout.on('data', function(data) {
console.log(data);
});
OR pipe the child process's stdout to the main stdout.
coffeeProcess.stdout.pipe(process.stdout);
OR inherit stdio using spawn
spawn('coffee -cw my_file.coffee', { stdio: 'inherit' });
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How do I pipe a subprocess call to a text file?
...can use the stdout-argument of subprocess.call.
It takes None, subprocess.PIPE, a file object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The third and fourth are what you want,...
Escape angle brackets in a Windows command prompt
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See the 2nd part of my answer for an explanation of why pipes require multiple escapes.
– dbenham
Sep 25 '14 at 15:17
1
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Multiline syntax for piping a heredoc; is this portable?
...;eof2
Hi,
eof1
Helene.
eof2
So there is no problem doing redirections or pipes. Your example is similar to something like this:
cat file |
cmd
And the shell grammar (further down on the linked page) includes these definitions:
pipe_sequence : command
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