Apr 3, 2012 · What does a dollar sign followed by an at-sign (@) mean in a shell script? For example: umbrella_corp_options $@

Feb 20, 2011 · When going through one shell script, I saw the term "$?". What is the significance of this term?

Sep 17, 2012 · Meaning of "=~" operator in shell script [duplicate] Asked 13 years, 1 month ago Modified 12 years, 2 months ago Viewed 96k times

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.

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 …

How to add arithmetic variables in a script Ask Question Asked 12 years, 11 months ago Modified 6 years, 10 months ago

A script or shell function can take any number of arguments, and these may be referenced by using $1, $2, ..., in the script or function. To get the values of the positional parameters above …

See also Giving a bash script the option to accepts flags, like a command? for an elaborate, ad hoc, long and short option parser. It does not attempt to handle option arguments attached to …

Multiline shell script comments - how does this work? Ask Question Asked 13 years, 6 months ago Modified 7 years, 3 months ago

I have a script that automates a process that needs access to a password-protected system. The system is accessed via a command-line program that accepts the user password as an …