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Why is the console window closing immediately once displayed my output?
I'm studying C# by following the guides in MSDN .
21 Answers
21
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Python Unicode Encode Error
...str on Python 3
print(text)
If your output is redirected to a file (or a pipe); you could use PYTHONIOENCODING envvar, to specify the character encoding:
$ PYTHONIOENCODING=utf-8 python your_script.py >output.utf8
Otherwise, python your_script.py should work as is -- your locale settings are...
Python subprocess/Popen with a modified environment
...RD=foobar', 'rsync', \
'rsync://username@foobar.com::'], stdout=subprocess.PIPE)
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How to echo shell commands as they are executed
...ch outputs
$ echo hello world
hello world
For more complicated commands pipes, etc., you can use eval:
#!/bin/bash
# Function to display commands
exe() { echo "\$ ${@/eval/}" ; "$@" ; }
exe eval "echo 'Hello, World!' | cut -d ' ' -f1"
Which outputs
$ echo 'Hello, World!' | cut -d ' ' -f1
He...
How to redirect the output of a PowerShell to a file during its execution
...3.0, we've extended output redirection to include the following streams:
Pipeline (1)
Error (2)
Warning (3)
Verbose (4)
Debug (5)
All (*)
We still use the same operators
> Redirect to a file and replace contents
>> Redirect to a file and append to existing co...
Shell Script — Get all files modified after
... files modified within the last 7 days.
find . -type f -mtime -7 -print
Pipe that into tar/zip, and you should be good.
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Remove NA values from a vector
...and vectors).
discard(v, is.na)
The benefit is that it is easy to use pipes; alternatively use the built-in subsetting function [:
v %>% discard(is.na)
v %>% `[`(!is.na(.))
Note that na.omit does not work on lists:
> x <- list(a=1, b=2, c=NA)
> na.omit(x)
$a
[1] 1
$b
[1] 2
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Mac OS X Terminal: Map option+delete to “backward delete word”
...n-US keyboards, option key is often needed to get certain characters (e.g. pipe '|' is pretty important at shell). In that case <Esc> b and <Esc> f mentioned in other answers are probably the best solution?
– Touko
Apr 27 '15 at 6:52
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Set environment variables from file of key/value pairs
...he solution was actually doing), cat .env will read the .env file, then we pipe the result to xargs which is a helper tool to construct cli arguments. Finally we pass both the arguments and the command to be run to env which loads the environment variables and executes the command.
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How do I load my script into the node.js REPL?
...f you want it to watch all files in the current and all subdirectories and pipe them into the repl when they change do: replpad .
Check out the videos on the site to get a better idea of how it works and learn about some other nice features that it has like these:
access core module docs in the r...