Regular Expressions 101

1st Alternative(?<!`)(`(?:`{2})?)(?:(?!\1).)*?\1(*SKIP)(*F)

Negative Lookbehind(?<!`)

`the literal ` (96₁₀ / 140₈ / 60₁₆)

Group 1(`(?:`{2})?)

`the literal ` (96₁₀ / 140₈ / 60₁₆)

Non-Capturing Group(?:`{2})?

?repeats the group contents below at most once:

`{2}the literal ` (96₁₀ / 140₈ / 60₁₆) , repeated exactly 2 times

Non-Capturing Group(?:(?!\1).)*?

*?repeats the group contents below any number of times:

Negative Lookahead(?!\1)

\1the text saved by group 1

.any character (except for line terminators)

\1the text saved by group 1

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative"([^"]*)"

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 2([^"]*)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<!`)(`(?:`{2})?)(?:(?!\1).)*?\1(*SKIP)(*F)|"([^"]*)"

New

When copy/pasting commands that start with `cat << "EOF"`, select all lines at once (from `cat << "EOF"` to `EOF` inclusively) as they are part of the same (single) command

Figuring out how to ignore the above quoted strings is an interesting "rabbit hole".