shellfirm 0.3.8

`shellfirm` will intercept any risky patterns (default or defined by you) and prompt you a small challenge for double verification, kinda like a captcha for your terminal.
Documentation 
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- from: redis
  test: (?i)redis-cli\s+FLUSHALL
  description: "FLUSHALL will delete all data across all Redis databases."
  id: redis:flushall
  severity: Critical
  alternative: "redis-cli FLUSHDB"
  alternative_info: "FLUSHDB only clears the current database, not all databases."
- from: redis
  test: (?i)redis-cli\s+FLUSHDB
  description: "FLUSHDB will delete all data in the current Redis database."
  id: redis:flushdb
  severity: High
# Interactive session patterns (for shellfirm wrap)
- from: redis
  test: (?i)^\s*FLUSHALL\s*$
  id: redis:interactive_flushall
  severity: Critical
  description: "FLUSHALL will delete all data across all Redis databases."
  alternative: "FLUSHDB"
  alternative_info: "FLUSHDB only clears the current database."
- from: redis
  test: (?i)^\s*FLUSHDB\s*$
  id: redis:interactive_flushdb
  severity: High
  description: "FLUSHDB will delete all data in the current Redis database."
- from: redis
  test: (?i)^\s*SHUTDOWN\s*(NOSAVE)?\s*$
  id: redis:interactive_shutdown
  severity: Critical
  description: "SHUTDOWN will stop the Redis server."