Gnuplot: line 0: no previous plot Question: I am trying to save the Gnuplot plot in PNG that I get with my SDR and a tool named rtl_power_fftw. This command displays my plot on the screen but I want to save it in PNG: rtl_power_fftw -f 900M:950M -n 10 -b 512 -q | sed -u …
python for loop one-liner invoked from bash command line yields invalid syntax, but list comprehension works fine Question: I’m not sure why $ echo -e "test1ntest2ntest3" | python -c "import sys; for i in sys.stdin: print(i)" yields invalid syntax: File "<string>", line 1 import sys; for i in sys.stdin: print(i) ^^^ SyntaxError: invalid syntax it …
'pytest –version' works, but 'pytest tests' command not recognized with Bash in Github Actions Question: For my Python package ‘imfp’, I am doing my building and testing via ‘Github Actions’ using ‘poetry’ and pytest in a virtual environment. I’ve got the Github Actions script working successfully until the very step, when I run the tests …
How to feed multi-line grep output to xargs with multiple parameters from each line Question: I have a CSV file to grep from, where the number of columns may vary, e.g.: $ grep -v ‘Coba’ ETFs.csv | grep ‘Sector’ CAPE,Ossiam Shiller Barclays Cape Europe Sector Value TR,EUPE,FWB EUPB1,Ossiam Shiller Barclays Cape Global Sector Value,EUPB,FWB For …
Add a column from a Pandas dataframe to a new dataframe [Solved] Question: So I have a graph which I use to get the optimal path using Dijkstra. The path is returned as a list of index. I want to extract that path to a csv, but adding the coordinates to be able to visualize …
Bash check if file was modified within date range Question: I have a script that checks to see if a cert, (.cer file), is within 14 days of expiring, and if it is, it will archive the old cert request, generate a new one, and send it to the middleware team. The thought occurs though, …
How to add escape characters to a filename to be consumed later by a shell command? Question: I am trying to find out which of my video files are corrupted. I loop through a directory, grab each video file, and check if it is corrupt/healthy. If the filename has no spaces nor special characters, it …
Extract a value from an array of data Question: I get such an array of data [U8EUGGG1C32144101336_gulu, V5EUHHG1P12100100418_89011337751, V5EUHHG1P22111000028_89011337751] How I can extract only this value "89011337751" and write it to a variable ? Is it possible to do it with the bash, powershell or other scripts? Asked By: Vitaliy Kuzmenko || Source Answers: This …
Why do my shell statements cause blocking? bash -c "ps ax | grep 'tcpdump' | grep -v grep | kill -9 $(awk '{print $1}')" Question: I am rewriting a function to alternate os.system() in Python to ensure that the output of the process is logged. def log_system(self, cmd: str): cmd = cmd.rstrip(‘ ‘) if cmd[-1] …
Permission denied: calling a shell script from Python in a Jenkins job Question: Trying to provide the minimal amount of information necessary here, so I’ve left a lot out. Lots of similar questions around, but the most common answer (use chmod +x) isn’t working for me. I have a Python script and a shell script …
