$ cd tags

# Print help for `zk tag list`
$ zk tag list --help
>Usage: zk tag list
>
>List all the note tags.
>
>Flags:
>  -h, --help                 Show context-sensitive help.
>      --notebook-dir=PATH    Turn off notebook auto-discovery and set manually
>                             the notebook where commands are run.
>  -W, --working-dir=PATH     Run as if zk was started in <PATH> instead of the
>                             current working directory.
>      --no-input             Never prompt or ask for confirmation.
>
>Formatting
>  -f, --format=TEMPLATE    Pretty print the list using a custom template or one
>                           of the predefined formats: name, full, json, jsonl.
>      --header=STRING      Arbitrary text printed at the start of the list.
>      --footer="\\n"       Arbitrary text printed at the end of the list.
>  -d, --delimiter="\n"     Print tags delimited by the given separator.
>  -0, --delimiter0         Print tags delimited by ASCII NUL characters. This is
>                           useful when used in conjunction with `xargs -0`.
>  -P, --no-pager           Do not pipe output into a pager.
>  -q, --quiet              Do not print the total number of tags found.
>
>Sorting
>  -s, --sort=TERM,...    Order the tags by the given criterion.

# List all tags.
$ zk tag list
>biography (1)
>biology (2)
>book (12)
>dystopia (2)
>feminism (1)
>fiction (6)
>history (2)
>non-fiction (6)
>philosophy (3)
>physics (1)
>romance (3)
>science (3)
>science-fiction (1)
2>
2>Found 13 tags

# Quiet mode.
$ zk tag list --quiet
>biography (1)
>biology (2)
>book (12)
>dystopia (2)
>feminism (1)
>fiction (6)
>history (2)
>non-fiction (6)
>philosophy (3)
>physics (1)
>romance (3)
>science (3)
>science-fiction (1)

# Quiet mode (short).
$ zk tag list -q
>biography (1)
>biology (2)
>book (12)
>dystopia (2)
>feminism (1)
>fiction (6)
>history (2)
>non-fiction (6)
>philosophy (3)
>physics (1)
>romance (3)
>science (3)
>science-fiction (1)

# Remove some tags.
$ rm the*
$ zk tag list
>book (6)
>dystopia (2)
>fiction (5)
>non-fiction (1)
>physics (1)
>romance (2)
>science (1)
>science-fiction (1)
2>
2>Found 8 tags

# Add new tags.
$ echo "#tag1 #tag2 #science" > ulysses.md
$ zk tag list
>book (5)
>dystopia (2)
>fiction (4)
>non-fiction (1)
>physics (1)
>romance (2)
>science (2)
>science-fiction (1)
>tag1 (1)
>tag2 (1)
2>
2>Found 10 tags

# Remove all tags.
$ rm *
$ zk tag list
2>
2>Found 0 tag