gpg(1) on Linux

The text 1c3f57387f18, as Debian 13 (Trixie) shipped it.

OpenPGP encryption and signing tool

Flags it lists

--add-desig-revoker
--aead-algo
--agent-program
--allow-freeform-uid
--allow-multiple-messages
--allow-non-selfsigned-uid
--allow-old-cipher-algos
--allow-secret-key-import
--allow-weak-digest-algos
--allow-weak-key-signatures
--always-trust
--armor
--ask-cert-expire
--ask-cert-level
--ask-sig-expire
--assert-pubkey-algo
--assert-signer
--attribute-fd
--attribute-file
--auto-check-trustdb
--auto-key-import
--auto-key-locate
--auto-key-retrieve
--batch
--bzip2-compress-level
--bzip2-decompress-lowmem
--card-edit
--card-status
--cert-digest-algo
--cert-notation
--cert-policy-url
--change-passphrase
--change-pin
--check-signatures
--check-sigs
--check-trustdb
--chuid
--chunk-size
--cipher-algo
--clear-sign
--clearsign
--command-fd
--command-file
--comment
--compatibility-flags
--completes-needed
--compliance
--compress-algo
--compress-level
--dearmor
--debug
--debug-all
--debug-allow-large-chunks
--debug-ignore-expiration
--debug-iolbf
--debug-level
--debug-set-iobuf-size
--decrypt
--decrypt-files
--default-cert-expire
--default-cert-level
--default-key
--default-keyserver-url
--default-new-key-adsk
--default-new-key-algo
--default-preference-list
--default-recipient
--default-recipient-self
--default-sig-expire
--delete-keys
--delete-secret-and-public-key
--delete-secret-keys
--desig-revoke
--detach-sign
--digest-algo
--dirmngr-program
--disable-cipher-algo
--disable-dirmngr
--disable-dsa2
--disable-large-rsa
--disable-mdc
--disable-pubkey-algo
--disable-signer-uid
--display-charset
--dry-run
--dump-options
--edit-card
--edit-key
--emit-version
--enable-dsa2
--enable-large-rsa
--enable-progress-filter
--enable-special-filenames
--enarmor
--encrypt
--encrypt-files
--encrypt-to
--escape-from-lines
--exec-path
--exit-on-status-write-error
--expert
--export
--export-filter
--export-options
--export-ownertrust
--export-secret-keys
--export-secret-subkeys
--export-ssh-key
--faked-system-time
--fast-import
--fast-list-mode
--fetch-keys
--fingerprint
--fixed-list-mode
--for-your-eyes-only
--forbid-gen-key
--force-aead
--force-mdc
--force-ocb
--force-sign-key
--force-v3-sigs
--force-v4-certs
--full-gen-key
--full-generate-key
--full-timestrings
--gen-key
--gen-revoke
--generate-designated-revocation
--generate-key
--generate-revocation
--gnupg
--gpg-agent-info
--gpgconf-list
--gpgconf-test
--group
--help
--hidden-encrypt-to
--hidden-recipient
--hidden-recipient-file
--homedir
--ignore-crc-error
--ignore-mdc-error
--ignore-time-conflict
--ignore-valid-from
--import
--import-filter
--import-options
--import-ownertrust
--include-key-block
--input-size-hint
--interactive
--key-origin
--keyid-format
--keyring
--keyserver
--keyserver-options
--known-notation
--legacy-list-mode
--limit-card-insert-tries
--list-config
--list-filter
--list-gcrypt-config
--list-keys
--list-only
--list-options
--list-packets
--list-public-keys
--list-secret-keys
--list-signatures
--list-sigs
--local-user
--locate-external-keys
--locate-keys
--lock-multiple
--lock-never
--lock-once
--log-file
--log-time
--logger-fd
--logger-file
--lsign-key
--mangle-dos-filenames
--marginals-needed
--max-cert-depth
--max-output
--min-cert-level
--min-rsa-length
--multifile
--no
--no-allow-multiple-messages
--no-allow-non-selfsigned-uid
--no-armor
--no-ask-cert-expire
--no-ask-cert-level
--no-ask-sig-expire
--no-auto-check-trustdb
--no-auto-key-import
--no-auto-key-locate
--no-auto-key-retrieve
--no-auto-trust-new-key
--no-autostart
--no-batch
--no-comments
--no-compress
--no-default-keyring
--no-default-recipient
--no-emit-version
--no-encrypt-to
--no-escape-from-lines
--no-expensive-trust-checks
--no-expert
--no-for-your-eyes-only
--no-force-v3-sigs
--no-force-v4-certs
--no-greeting
--no-groups
--no-include-key-block
--no-keyring
--no-literal
--no-mangle-dos-filenames
--no-options
--no-permission-warning
--no-random-seed-file
--no-require-cross-certification
--no-require-secmem
--no-secmem-warning
--no-show-notation
--no-show-photos
--no-show-policy-url
--no-sig-cache
--no-skip-hidden-recipients
--no-symkey-cache
--no-textmode
--no-throw-keyids
--no-tty
--no-use-agent
--no-use-embedded-filename
--no-utf8-strings
--no-verbose
--not-dash-escaped
--openpgp
--options
--output
--override-compliance-check
--override-session-key
--override-session-key-fd
--passphrase
--passphrase-fd
--passphrase-file
--passphrase-repeat
--passwd
--personal-aead-preferences
--personal-cipher-preferences
--personal-compress-preferences
--personal-digest-preferences
--pgp6
--pgp7
--pgp8
--photo-viewer
--pinentry-mode
--preserve-permissions
--primary-keyring
--print-md
--print-mds
--proc-all-sigs
--quick-update-pref
--quiet
--rebuild-keydb-caches
--receive-keys
--recipient
--recipient-file
--recv-keys
--refresh-keys
--request-origin
--require-compliance
--require-cross-certification
--require-secmem
--rfc2440
--rfc4880
--rfc4880bis
--s2k-cipher-algo
--s2k-count
--s2k-digest-algo
--s2k-mode
--search-keys
--secret-keyring
--send-keys
--sender
--set-filename
--set-filesize
--set-notation
--set-policy-url
--show-keyring
--show-keys
--show-notation
--show-photos
--show-policy-url
--show-session-key
--sig-keyserver-url
--sig-notation
--sig-policy-url
--sign
--sign-key
--skip-hidden-recipients
--skip-verify
--status-fd
--status-file
--store
--symmetric
--textmode
--throw-keyids
--tofu-default-policy
--trust-model
--trustdb-name
--try-all-secrets
--try-secret-key
--ungroup
--unwrap
--update-trustdb
--use-agent
--use-embedded-filename
--utf8-strings
--verbose
--verify
--verify-files
--verify-options
--version
--warranty
--weak-digest
--with-colons
--with-fingerprint
--with-icao-spelling
--with-key-data
--with-key-origin
--with-keygrip
--with-secret
--with-subkey-fingerprint
--with-v5-fingerprint
--with-wkd-hash
--yes
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gpg(1) on Linux now