linux - What does $@ mean in a shell script? - Stack Overflow
...What does a dollar sign followed by an at-sign (@) mean in a shell script? For example: umbrella_corp_options $@...
https://stackoverflow.com/questions/9994295/what-does-mean-in-a-shell-script
shell - Difference between sh and Bash - Stack Overflow
...Shell - "Shell" is a program, which facilitates the interaction between the user and the operating system (kernel). There are many shell implementations available, like sh, Bash, C shell, Z shell, etc....
https://stackoverflow.com/questions/5725296/difference-between-sh-and-bash
shell - How to concatenate string variables in Bash - Stack Overflow
...A bashism is a shell feature which is only supported in bash and certain other more advanced shells. It will not work under busybox sh or dash (which is /bin/sh on a lot of distros), or certain other shells like the /bin/sh provided on FreeBSD....
https://stackoverflow.com/questions/4181703/how-to-concatenate-string-variables-in-bash
What are the special dollar sign shell variables? - Stack Overflow
...$! is the PID of the most recent background command. $0 is the name of the shell or shell script. Most of the above can be found under Special Parameters in the Bash Reference Manual. Here are all the environment variables set by the shell. For a comprehensive index, please see the Reference Manual Variable Index....
https://stackoverflow.com/questions/5163144/what-are-the-special-dollar-sign-shell-variables
What is the meaning of $? in a shell script? - Unix & Linux Stack Exchange
...When going through one shell script, I saw the term "$?". What is the significance of this term?...
https://unix.stackexchange.com/questions/7704/what-is-the-meaning-of-in-a-shell-script
shell - How can I compare numbers in Bash? - Stack Overflow
...You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What's reputation and how do I get it? Instead, you can save this post to reference later....
https://stackoverflow.com/questions/18668556/how-can-i-compare-numbers-in-bash
How do I get into a Docker container's shell? - Stack Overflow
...docker debug
https://stackoverflow.com/questions/30172605/how-do-i-get-into-a-docker-containers-shell
How to represent multiple conditions in a shell if statement?
...How to represent multiple conditions in a shell if statement? Asked 15 years ago Modified 3 years, 8 months ago Viewed 1.2m times...
https://stackoverflow.com/questions/3826425/how-to-represent-multiple-conditions-in-a-shell-if-statement
shell - What is the "eval" command in bash? - Unix & Linux Stack Exchange
...What can you do with the eval command? Why is it useful? Is it some kind of a built-in function in bash? There is no man page for it.....
https://unix.stackexchange.com/questions/23111/what-is-the-eval-command-in-bash
Running multiple commands in one line in shell - Stack Overflow
...There is a variation of running multiple commands in one line in the shell where you want them to run simultaneously rather than one after the other. The OP was interested in the latter but I needed the former and the && method would not work....
https://stackoverflow.com/questions/5130847/running-multiple-commands-in-one-line-in-shell