Shell equality operators (=, ==, -eq) Asked 12 years, 3 months ago Modified 3 years, 9 months ago Viewed 656k times Apr 3, 2012 · What does a dollar sign followed by an at-sign (@) mean in a shell script? For example: umbrella_corp_options $@ Aug 1, 2019 · What does echo $? mean in shell programming? true echo $? # echoes 0 false echo $? # echoes 1 From the manual: (acessible by calling man bash in your shell) ? Expands to the exit status .
Sep 17, 2012 · Meaning of "=~" operator in shell script [duplicate] Ask Question Asked 13 years, 5 months ago Modified 12 years, 7 months ago Feb 20, 2011 · When going through one shell script, I saw the term "$?". What is the significance of this term? 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.
I'm trying to learn shell scripting, and I need to understand someone else's code. What is the $? variable hold? I can't Google search the answer because they block punctuation characters. Sep 14, 2012 · $! 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 . Difference between $ {} and $ () in a shell script Ask Question Asked 10 years, 8 months ago Modified 1 year, 1 month ago
Jul 22, 2018 · In shell scripts, what is the difference between $@ and $*? Which one is the preferred way to get the script arguments? Are there differences between the different shell interpreters about this?
- Linux - What does $@ mean in a shell script?
- What does a dollar sign followed by an at-sign (@) mean in a shell script?
- (dollar question mark) in shell scripts.
Regex - Meaning of "=~" operator in shell script - Stack Overflow. This indicates that "Shell Parser & Session Engine" should be tracked with broader context and ongoing updates.
Meaning of "=~" operator in shell script [duplicate] Ask Question Asked 13 years, 5 months ago Modified 12 years, 7 months ago. For readers, this helps frame potential impact and what to watch next.
FAQ
What happened with Shell Parser & Session Engine?
When going through one shell script, I saw the term "$?".
Why is Shell Parser & Session Engine important right now?
(dollar question mark) variable in shell scripting?.
What should readers monitor next?
What are the special dollar sign shell variables?
Sources
- https://stackoverflow.com/questions/20449543/shell-equality-operators-eq
- https://stackoverflow.com/questions/9994295/what-does-mean-in-a-shell-script
- https://stackoverflow.com/questions/7248031/meaning-of-dollar-question-mark-in-shell-scripts
- https://stackoverflow.com/questions/12454731/meaning-of-operator-in-shell-script
