FY-TOOL(1) libfyaml FY-TOOL(1) (NAME) fy-tool - YAML (SYNOPSIS) fy-tool [] [<> ] fy-dump [] [<> ] fy-testsuite [] <> fy-filter [] [-f FILE] [<> ] fy-join [] [-T PATH] [-F PATH] [-t PATH] [<> ] fy-ypath [] [<> ] fy-compose [] [<> ] fy-b3sum [] [<> ] (DESCRIPTION) fy-tool libfyaml YAML JSON . (fy-dump fy-testsuite fy-filter fy-join fy-ypath fy-compose fy-b3sum) --dump --filter . dump . (OPTIONS) -h, --help . -v, --version libfyaml. -q, --quiet . -d LEVEL, --debug-level LEVEL . 3 ( ) . -C MODE, --color MODE ANSI. on off auto. auto . -V, --visible . --dry-run . --disable-diag MODULE . --enable-diag MODULE . --show-diag OPTION . source position type module. --hide-diag OPTION . -I DIR, --include DIR DIR (include) . -j MODE, --json MODE JSON. no force auto. auto . -r, --resolve (anchors) . --yaml-1.1 YAML 1.1 . --yaml-1.2 YAML 1.2 . --yaml-1.3 YAML 1.3 . -l, --follow (aliases) . --sloppy-flow-indentation (flow mode). --prefer-recursive (iterative). --ypath-aliases ypath. --allow-duplicate-keys . --collect-errors . --disable-accel /. --disable-buffering stdio (file descriptor). --disable-mmap (mmap). --disable-depth-limit . -i INDENT, --indent INDENT . 2 . -w WIDTH, --width WIDTH . inf . 80 . -m MODE, --mode MODE . original block flow flow-oneline json json-tp json-oneline dejson pretty flow-compact json-compact. -s, --sort . -c, --comment () . --strip-labels . --strip-tags . --strip-doc . --strip-empty-kv (null) . --null-output . --no-ending-newline . --preserve-flow-layout . --indented-seq-in-map . --streaming . . --no-streaming . --recreating . --disable-flow-markers . --disable-doc-markers . --disable-scalar-styles . --document-event-stream . --tsv-format TSV. -f FILE, --file FILE FILE . FILE > . -T PATH, --to PATH PATH. / . -F PATH, --from PATH PATH. / . -t PATH, --trim PATH PATH . / . YPATH -F PATH, --from PATH PATH. / . --dump-pathexpr . --noexec . (Compose) --dump-path . B3SUM --b3sum BLAKE3. --derive-key CONTEXT CONTEXT. --no-names . --raw (digest). --length N N BLAKE3. --check . --keyed . --backend BACKEND BLAKE3. --list-backends BLAKE3. --num-threads N . 0 -1 . --file-buffer N / . --mmap-min-chunk N . --mmap-max-chunk N . --dump dump. fy-dump . --testsuite . fy-testsuite . --filter . fy-filter . --join . fy-join . --ypath ypath. fy-ypath . --scan-dump scan-dump. --parse-dump parse-dump. --compose dump (composer-driver). fy-compose . --yaml-version-dump YAML. (EXAMPLES) YAML : $ fy-dump invoice.yaml : $ fy-dump -r --strip-labels simple-anchors.yaml --file: $ fy-filter --file \">foo: bar\" / : $ fy-filter --file simple-anchors.yaml /baz/bar : $ fy-join simple-anchors.yaml invoice.yaml : $ fy-testsuite invoice.yaml BLAKE3: $ fy-b3sum --list-backends (AUTHORS) Pantelis Antoniou (BUGS) o UTF8 . o . o . (SEE ALSO) libfyaml(3) (COPYRIGHT) 2019-2026, Pantelis Antoniou March 15, 2026 FY-TOOL(1)