Feb 20, 2011 · This latter usage is faster, does not contaminate the shell's variable namespace with what amounts to temp variables, can often be a lot more readable for humans and …

Jan 20, 2025 · Shell scripting: -z and -n options with if Ask Question Asked 11 years, 11 months ago Modified 11 months ago

Feb 17, 2020 · I am running a script in a loop which creates some data as per some logic and then displays output in some combination but the output I am getting is in new line Roll …

What does $# mean in shell? I have code such as if [ $# -eq 0 ] then I want to understand what $# means, but Google search is very bad for searching these kinds of things.

What is the purpose of using shift in shell scripts? Ask Question Asked 11 years ago Modified 6 years, 10 months ago

Difference between $ {} and $ () in a shell script Ask Question Asked 10 years, 6 months ago Modified 11 months ago

Mar 31, 2017 · -s FILE:- FILE exists and has a size greater than zero. The [ [ ... ]] part allows to test a condition using operators. Think of it as an if statement. In your example, you're using …

I'm learning Shell scripting for a diploma in IT I'm currently doing. I'm trying to write a small script that adds two numbers as shown as in one of the tutorials we were given. echo "Enter two nu...

The question doesn't mention bash, and in fact deliberately only mentions shell script, both in the tags, and in the question. This answer would fail in a POSIX environment.

source is a shell built-in command. The which command looks for binaries on the PATH, like in /usr/bin, /bin, /sbin, etc. but you won't find any built-in commands in a separate binary. Also, …