Quoting regular expressions in Bash
40539
How do I use regular expressions in bash scripts?
19802
Reading quoted/escaped arguments correctly from a string
20567
Why does shell ignore quoting characters in arguments passed to it through variables?
149251
Quoting / escaping / expansion issue in "command in a variable"
2583
Quoting within $(command substitution) in Bash
158457
Using | pipe character from a $variable makes it treat as just another argument in bash; how to escape it?
107373
Regular expression using '$' sign and '^'
59166
When to wrap quotes around a shell variable?
91455
Expand macros inside quoted string
2230
How can I escape square brackets in a LIKE clause?
151145
How can I make bash not match `.` and `..` with `.*`
70007
Escaping quotes in zsh alias
823
How do you use a variable in a regular expression?
3562
Renaming a file in Bash using regular expressions
47068
Wrapping a command that includes single and double quotes for another command
17356
Quotation marks inside a string
120253
How to escape a single quote?