linux - What does $@ mean in a shell script? - Stack Overflow
Apr 3, 2012 · What does a dollar sign followed by an at-sign (@) mean in a shell script? For example: umbrella_corp_options $@
What is the meaning of $? in a shell script? - Unix & Linux Stack …
Feb 20, 2011 · When going through one shell script, I saw the term "$?". What is the significance of this term?
regex - Meaning of "=~" operator in shell script - Stack Overflow
Sep 17, 2012 · Meaning of "=~" operator in shell script [duplicate] Asked 13 years, 2 months ago Modified 12 years, 4 months ago Viewed 96k times
Shell scripting: -z and -n options with if - Unix & Linux Stack …
Jan 16, 2014 · You can find a very nice reference for bash's [ aka test builtin's operators here, or by running help test in a bash shell or info bash test or info bash '[' from any shell¹. If you are …
What does $# mean in shell? - Unix & Linux Stack Exchange
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 meaning of -n, -z, -x, -L, -d, etc... in Shell Script?
Nov 16, 2018 · I often find on files .sh Shell Script in conditionals sintaxis like these:
How can I declare and use Boolean variables in a shell script?
Could we agree that it would be ok to use this simplified syntax inside a function with explicitly declared local "bools"? If one writes a substantial shell script, and has to worry about external …
How to echo shell commands as they are executed - Stack Overflow
May 18, 2010 · Alternatively, these modes can be specified in the script itself, by adding the desired options to the first line shell declaration. Options can be combined, as is usually the …
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 …
When to wrap quotes around a shell variable? - Stack Overflow
Should or should I not wrap quotes around variables in a shell script? For example, is the following correct: