Is there any reason to prefer [[ over [ in bash?
52584
Is test or [ or [[ more portable both between bash shells and between other shells?
50931
What is the difference between #!/bin/sh and #!/bin/bash?
134951
What is the difference between > and >> (especially as it relates to use with the cat program)?
74845
Difference between single and double quotes in Bash
121082
Why does [A-Z] match lowercase letters in bash?
77109
Usage of :- (colon dash) in bash
47840
How to avoid nested With[]?
49762
Which is more idiomatic in a bash script: `|| true` or `|| :`?
101523
Why is using `<<-` frowned upon and how can I avoid it?
157583
When to use bash ANSI C style escape, e.g. $'\n'
39457
Why is \[ ... \] preferable to $$ ... $$?
96938
What's the difference between using > and >> in shell?
102137
What's the purpose of adding a prefix on both sides of a shell variable comparison to a string literal?
107557
Shell usage of ":-" and advantage
54569
How can I escape white space in a bash loop list?
1528
Simple logical operators in Bash
111091
How to avoid space after bash variable in string?