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bash - Shell equality operators (=, ==, -eq) - Stack Overflow If not quoted, it is a pattern match! (From the Bash man page: "Any part of the pattern may be quoted to force it to be matched as a string ") Here in Bash, the two statements yielding "yes" are pattern matching, other three are string equality:
Bash test: what does =~ do? - Unix Linux Stack Exchange I realize you said “read the bash man pages” but at first, I thought you meant read the man pages within bash At any rate, man bash returns a huge file, which is 4139 lines (72 pages) long
An and operator for an if statement in Bash - Stack Overflow Modern shells such as Bash and Zsh have inherited this construct from Ksh, but it is not part of the POSIX specification If you're in an environment where you have to be strictly POSIX compliant, stay away from it; otherwise, it's basically down to personal preference
Difference between ${} and $() in Bash - Stack Overflow I have two questions and could use some help understanding them What is the difference between ${} and $()? I understand that () means running command in separate shell and placing $ means passing
What do the -n and -a options do in a bash if statement? The switches -a and -n are not strictly part of a bash if statement in that the if command does not process these switches What are primaries? I call them "switches", but the bash documentation that you linked to refers to the same thing as "primaries" (probably because this is a common term used when discussing parts of a boolean expression)
syntax - Ternary operator (?:) in Bash - Stack Overflow @dutCh's answer shows that bash does have something similar to the "ternary operator" however in bash this is called the "conditional operator" expr?expr:expr (see man bash goto section "Arithmetic Evaluation") Keep in mind the bash "conditional operator" is tricky and has some gotchas
What is bash command in bash? - Ask Ubuntu I just typed bash in Ubuntu's terminal and, it was like normal But after that, I had to type exit twice What is bash command in bash?
What does set -e mean in a Bash script? - Stack Overflow 74 As per bash - The Set Builtin manual, if -e errexit is set, the shell exits immediately if a pipeline consisting of a single simple command, a list or a compound command returns a non-zero status