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 working with binary data.
For more information see https://github.com/wader/fq

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

Example usages:
  fq . file
  fq d file
  fq tovalue file
  fq -r totoml file.yml
  fq -s -d html 'map(.html.head.title?)' *.html
  cat file.cbor | fq -d cbor torepr
  fq 'grep("^main$") | parent' /bin/ls
  fq -r 'grep_by(.protocol=="icmp").source_ip | tovalue' *.pcap
  fq -i

--arg NAME VALUE        Set variable $NAME to string VALUE
--argdecode NAME PATH   Set variable $NAME to decode of PATH
--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)
--from-file,-f PATH     Read EXPR from file
--help,-h [TOPIC]       Show help for TOPIC (ex: --help, --help formats)
--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 and inputs functions to read)
--null-output,-0        Null byte between outputs
--option,-o KEY=VALUE   Set option (ex: -o color=true, see --help 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              Slurp all inputs into an array or string (-Rs)
--unicode-output,-U     Force unicode output
--version,-v            Show version
$ fq -i
null> ^D
$ fq -i . test.mp3
mp3> ^D
$ fq -n
null
$ 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 --help options
addrbase            16
arg                 []
argdecode           []
argjson             []
array_truncate      50
bits_format         snippet
byte_colors         0-255=brightwhite,0=brightblack,32-126:9-13=white
color               false
colors              array=white,dumpaddr=yellow,dumpheader=yellow+underline,error=brightred,false=yellow,index=white,null=brightblack,number=cyan,object=white,objectkey=brightblue,prompt_repl_level=brightblack,prompt_value=white,string=green,true=yellow,value=white
compact             false
completion_timeout  10
decode_format       probe
decode_progress     false
depth               0
display_bytes       16
expr                .
expr_eval_path      arg
expr_file           
filenames           [null]
force               false
include_path        
join_string         \n
line_bytes          16
null_input          false
raw_file            []
raw_output          false
raw_string          false
repl                false
show_formats        false
show_help           options
sizebase            10
slurp               false
string_input        false
unicode             false
verbose             false
width               135
$ fq --help formats
aac_frame            Advanced Audio Coding frame
adts                 Audio Data Transport Stream
adts_frame           Audio Data Transport Stream frame
amf0                 Action Message Format 0
apev2                APEv2 metadata tag
ar                   Unix archive
asn1_ber             ASN1 BER (basic encoding rules, also CER and DER)
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
avro_ocf             Avro object container file
bencode              BitTorrent bencoding
bitcoin_blkdat       Bitcoin blk.dat
bitcoin_block        Bitcoin block
bitcoin_script       Bitcoin script
bitcoin_transaction  Bitcoin transaction
bsd_loopback_frame   BSD loopback frame
bson                 Binary JSON
bzip2                bzip2 compression
cbor                 Concise Binary Object Representation
csv                  Comma separated values
dns                  DNS packet
dns_tcp              DNS packet (TCP)
elf                  Executable and Linkable Format
ether8023_frame      Ethernet 802.3 frame
exif                 Exchangeable Image File Format
fairplay_spc         FairPlay Server Playback Context
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
hevc_pps             H.265/HEVC Picture Parameter Set
hevc_sps             H.265/HEVC Sequence Parameter Set
hevc_vps             H.265/HEVC Video Parameter Set
html                 HyperText Markup Language
icc_profile          International Color Consortium profile
icmp                 Internet Control Message Protocol
icmpv6               Internet Control Message Protocol v6
id3v1                ID3v1 metadata
id3v11               ID3v1.1 metadata
id3v2                ID3v2 metadata
ipv4_packet          Internet protocol v4 packet
ipv6_packet          Internet protocol v6 packet
jpeg                 Joint Photographic Experts Group file
json                 JavaScript Object Notation
jsonl                JavaScript Object Notation Lines
macho                Mach-O macOS executable
macho_fat            Fat Mach-O macOS executable (multi-architecture)
matroska             Matroska file
mp3                  MP3 file
mp3_frame            MPEG audio layer 3 frame
mp4                  ISOBMFF MPEG-4 part 12 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
msgpack              MessagePack
ogg                  OGG file
ogg_page             OGG page
opus_packet          Opus packet
pcap                 PCAP packet capture
pcapng               PCAPNG packet capture
png                  Portable Network Graphics file
prores_frame         Apple ProRes frame
protobuf             Protobuf
protobuf_widevine    Widevine protobuf
pssh_playready       PlayReady PSSH
raw                  Raw bits
rtmp                 Real-Time Messaging Protocol
sll2_packet          Linux cooked capture encapsulation v2
sll_packet           Linux cooked capture encapsulation
tar                  Tar archive
tcp_segment          Transmission control protocol segment
tiff                 Tag Image File Format
toml                 Tom's Obvious, Minimal Language
udp_datagram         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
wasm                 WebAssembly Binary Format
wav                  WAV file
webp                 WebP image
xing                 Xing header
xml                  Extensible Markup Language
yaml                 YAML Ain't Markup Language
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