fq/pkg/interp/testdata/args.fqtest

$ fq
exitcode: 2
stderr:
Usage: fq [OPTIONS] [--] [EXPR] [FILE...]
$ fq -h
fq - jq for binary formats
Tool, language and decoders for exploring binary data.
For more information see https://github.com/wader/fq

Usage: fq [OPTIONS] [--] [EXPR] [FILE...]

--arg NAME VALUE         Set variable $NAME to string VALUE
--argjson NAME JSON      Set variable $NAME to JSON
--color-output,-C        Force color output
--compact-output,-c      Compact output
--decode,-d NAME         Decode format (probe)
--decode-file NAME PATH  Set variable $NAME to decode of file
--formats                Show supported formats
--from-file,-f PATH      Read EXPR from file
--help,-h                Show help
--include-path,-L PATH   Include search path
--join-output,-j         No newline between outputs
--monochrome-output,-M   Force monochrome output
--null-input,-n          Null input (use input/0 and inputs/0 to read input)
--null-output,-0         Null byte between outputs
--option,-o KEY=VALUE    Set option, eg: color=true (use options/0 to see all options)
--raw-file NAME PATH     Set variable $NAME to string content of file
--raw-input,-R           Read raw input strings (don't decode)
--raw-output,-r          Raw string output (without quotes)
--repl,-i                Interactive REPL
--slurp,-s               Read (slurp) all inputs into an array
--version,-v             Show version
$ fq -i
null> ^D
$ fq -i . /test.mp3
mp3> ^D
$ fq -n
exitcode: 2
stderr:
Usage: fq [OPTIONS] [--] [EXPR] [FILE...]
$ fq -ni
null> ^D
$ fq -n 123
123
$ fq -ni 123
number> ^D
$ fq -n "[1,2,3]"
[
  1,
  2,
  3
]
$ fq -nc "[1,2,3]"
[1,2,3]
$ fq --formats
aac_frame            Advanced Audio Coding frame
adts                 Audio Data Transport Stream
adts_frame           Audio Data Transport Stream frame
apev2                APEv2 metadata tag
av1_ccr              AV1 Codec Configuration Record
av1_frame            AV1 frame
av1_obu              AV1 Open Bitstream Unit
avc_annexb           H.264/AVC Annex B
avc_au               H.264/AVC Access Unit
avc_dcr              H.264/AVC Decoder Configuration Record
avc_nalu             H.264/AVC Network Access Layer Unit
avc_pps              H.264/AVC Picture Parameter Set
avc_sei              H.264/AVC Supplemental Enhancement Information
avc_sps              H.264/AVC Sequence Parameter Set
bzip2                bzip2 compression
dns                  DNS packet
elf                  Executable and Linkable Format
ether8023            Ethernet 802.3
exif                 Exchangeable Image File Format
flac                 Free Lossless Audio Codec file
flac_frame           FLAC frame
flac_metadatablock   FLAC metadatablock
flac_metadatablocks  FLAC metadatablocks
flac_picture         FLAC metadatablock picture
flac_streaminfo      FLAC streaminfo
gif                  Graphics Interchange Format
gzip                 gzip compression
hevc_annexb          H.265/HEVC Annex B
hevc_au              H.265/HEVC Access Unit
hevc_dcr             H.265/HEVC Decoder Configuration Record
hevc_nalu            H.265/HEVC Network Access Layer Unit
icc_profile          International Color Consortium profile
id3v1                ID3v1 metadata
id3v11               ID3v1.1 metadata
id3v2                ID3v2 metadata
ipv4                 Internet protocol v4
jpeg                 Joint Photographic Experts Group file
json                 JSON
matroska             Matroska file
mp3                  MP3 file
mp3_frame            MPEG audio layer 3 frame
mp4                  MPEG-4 file and similar
mpeg_asc             MPEG-4 Audio Specific Config
mpeg_es              MPEG Elementary Stream
mpeg_pes             MPEG Packetized elementary stream
mpeg_pes_packet      MPEG Packetized elementary stream packet
mpeg_spu             Sub Picture Unit (DVD subtitle)
mpeg_ts              MPEG Transport Stream
ogg                  OGG file
ogg_page             OGG page
opus_packet          Opus packet
pcap                 PCAP packet capture
pcapng               PCAPNG packet capture
png                  Portable Network Graphics file
protobuf             Protobuf
protobuf_widevine    Widevine protobuf
pssh_playready       PlayReady PSSH
raw                  Raw bits
tar                  Tar archive
tcp                  Transmission Control Protocol
tiff                 Tag Image File Format
udp                  User datagram protocol
vorbis_comment       Vorbis comment
vorbis_packet        Vorbis packet
vp8_frame            VP8 frame
vp9_cfm              VP9 Codec Feature Metadata
vp9_frame            VP9 frame
vpx_ccr              VPX Codec Configuration Record
wav                  WAV file
webp                 WebP image
xing                 Xing header
zip                  ZIP archive
$ fq -X
exitcode: 2
stderr:
error: -X: no such argument
$ fq --X
exitcode: 2
stderr:
error: --X: no such argument
$ fq -.
exitcode: 2
stderr:
error: -.: no such argument