All Questions

If I declare an associative array in Bash, and then want to reference an element using a subscript which is a variable whose value contains spaces, when and how should I quote the variable name I am ...

I am making a shell orchestrator in C which connects with other devices and controls connected systems using an IP address. I am having difficulty in adding the feature to use arrow keys to navigate ...

I have a little problem to crack that turns out to be less trivial than I thought - even to formulate as a question for the title of this ticket, in fact! Here's the background: I mount my iPhone via ...

When working on a BASH exercise that is about building a simple password and account manager, I am required to add the function that allows users to retrieve an encrypted password. Below are my codes: ...

According to the Bash manual, The TIMEFORMAT variable may be used to specify the format of the time information. For instance, if I set TIMEFORMAT to %R, then time should only print the elapsed time ...

I am trying to implement a small Shell in C, one of the builtins required by my school project is cd. To do it, I use chdir to get a grip on some basics directory movement. I have read the man of cd ...

I’m working on a small project to build an inventory management system for hospitals that keeps track of medical equipment and supplies. The goal is to manage different types of equipment, track stock ...

I am investigating a possible handle leak related to Windows COM objects used from a third-party application. The application (Elipse E3 SCADA) runs VBScript code that instantiates Windows COM objects,...

I've searched around about how one can write a shell script (preferably cross-shell, but also in bash) that detects if it is being piped into so that it's operation can be changed accordingly. The ...

I need to issue a lot of, say, wget commands manually. I figured the following would make it convenient: $ sed 's/.*/wget &/g' | bash -i Indeed, stdin is now listening to my input as I copy-paste ...

I’m a macOS user and I use the Terminal while studying programming. I’m not sure whether I should be using bash or zsh. When I type bash, it switches to bash and the top bar shows “bash”, but when I ...

Since the subshell in the last line fails, I would have expected to see a fail. Am I missing something or is this a bug in GNU bash, version 5.3.3(1)-release (x86_64-pc-linux-gnu)? $ false; echo $? 1 $...

#!/bin/zsh for i in $(ls rid_*.xvg | sort -V | head -n1) do echo ${i} gnuplot <<- EOF reset session FILE="${i}" set yrange [0:30] # Gaussian function g(x)=...

I am trying to generate a script that gets the number of keywords, asks you for each keyword, and assigns each one in a variable to a for loop, I have tried this so far: #!/usr/bin/env bash read -p ...

TL;DR I just want to run arbitrary shell commands with a static service user and see their output on the shell but also capture it for later use, i.e. send it by e-mail, and observe redirected output ...