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- 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 $@
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Meaning of "=~" operator in shell script [duplicate] Asked 12 years, 10 months ago Modified 11 years, 11 months ago Viewed 96k times
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Difference between $ {} and $ () in a shell script Ask Question Asked 10 years, 1 month ago Modified 5 months ago
- 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
- What is the $? (dollar question mark) variable in shell scripting?
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
- bash - Shell equality operators (=, ==, -eq) - Stack Overflow
Shell equality operators (=, ==, -eq) Asked 11 years, 8 months ago Modified 3 years, 2 months ago Viewed 635k times
- 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
- shell - What does at the end of a linux command mean . . . - Stack . . .
I am a system administrator and I have been asked to run a linux script to clean the system The command is this: perl script pl gt; output log amp; so this command is ending with a amp; sign,
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