How to disable logging on the standard error stream in Python? This does not work: import logging logger = logging.getLogger() logger.removeHandler(sys.stderr) logger.warning(‘foobar’) # emits ‘foobar’ on sys.stderr 19 Answers 19
I’ve always been amazed/frustrated with how long it takes to simply output to the terminal with a print statement. After some recent painfully slow logging I decided to look into it and was quite surprised to find that almost all the time spent is waiting for the terminal to process the results. Can writing to … Read more
It seems that newer versions of bash have the &> operator, which (if I understand correctly), redirects both stdout and stderr to a file (&>> appends to the file instead, as Adrian clarified). What’s the simplest way to achieve the same thing, but instead piping to another command? For example, in this line: cmd-doesnt-respect-difference-between-stdout-and-stderr | … Read more
Is the output of a Bash command stored in any register? E.g. something similar to $? capturing the output instead of the exit status. I could assign the output to a variable with: output=$(command) but that’s more typing… 14 Answers 14
I have a PowerShell script for which I would like to redirect the output to a file. The problem is that I cannot change the way this script is called. So I cannot do: .\MyScript.ps1 > output.txt How do I redirect the output of a PowerShell script during its execution? 10 Answers 10
Is there any bash command that will let you get the nth line of STDOUT? That is to say, something that would take this $ ls -l -rw-r–r–@ 1 root wheel my.txt -rw-r–r–@ 1 root wheel files.txt -rw-r–r–@ 1 root wheel here.txt and do something like $ ls -l | magic-command 2 -rw-r–r–@ 1 root … Read more
I want to run a script, which basically shows an output like this: Installing XXX… [DONE] Currently, I print Installing XXX… first and then I print [DONE]. However, I now want to print Installing xxx… and [DONE] on the same line. Any ideas? 18 Answers 18
I am rather confused with the purpose of these three files. If my understanding is correct, stdin is the file in which a program writes into its requests to run a task in the process, stdout is the file into which the kernel writes its output and the process requesting it accesses the information from, … Read more
I would like to pipe standard output of a program while keeping it on screen. With a simple example (echo use here is just for illustration purpose) : $ echo ‘ee’ | foo ee <- the output I would like to see I know tee could copy stdout to file but that’s not what I … Read more
This question already has answers here: How to redirect and append both standard output and standard error to a file with Bash (9 answers) Closed 5 years ago. I am running a bash script that creates a log file for the execution of the command I use the following Command1 >> log_file Command2 >> log_file … Read more
