. htaccess under Flags quick Check table

Flags is an optional parameter that is separated by commas when multiple flags appear at the same time.

Quick Check Table:

Rewirterule Mark	Meaning	Describe
R	Redirect	Issue an HTTP redirect
F	Forbidden	Disallow access to URL addresses
G	Gone	Tag URL address does not exist
P	Proxy	Pass the URL address to Mod_proxy
L	Last	Stop processing the next rule
N	Next	Start processing again from the first rule, but use the URL address of the current override
C	Chain	Link the current rule to the rule immediately followed
T	Type	Enforcing the specified MIME class
Ns	Nosubreq	Apply this rule only when there are no internal sub-requests executed
NC	Nocase	URL address matching is case sensitive
QSA	Qsappend	Append the query string part to the new URL address instead of replacing the
Pt	Passthrough	Pass the rewritten URL address to another Apache module for further processing
S	Skip	After ignoring the rules
E	Env	Setting environment variables

. htaccess under Flags quick Check table